The Riddler (Arkhamverse)

"Are you ready for some more? Explore! Find my challenges. And when you fail to solve them and lie blubbering like an ignorant child on the floor, you will know that The Riddler... is better than you."

- The Riddler to Batman

Edward Nigma is a man who has spent a vast amount of his life studying, exploring and memorizing all the knowledge he possibly could. Being raised by abusive and neglectful parents, he strived to be the most intelligent man alive. His parents (primarily his father) refused to believe he could ever become smarter than them, often accusing him of cheating whenever he succeeded in school academics or trivial games. This may have been what caused his inferiority complex to become so deep that he feels compelled to always leave cryptic clues to anyone worthy of his games in an attempt to prove both his honesty and his intellect initially taking on the moniker of Enigma.

As The Riddler, Nigma contacts Batman via radio and gives him the task of completing 240 "Riddler Challenges" spread across Arkham Island. Despite the amount and complexity of these riddles, Batman still proved victorious, in addition to disrupting the Joker's plans and riots at the Asylum that same night, and led the Gotham City Police to Riddler's location, where he was taken down and arrested once again.

More than ever, Nigma then desired to outsmart and humiliate Batman, before ultimately killing him, and makes it his top priority to come up with a puzzle that not even the Dark Knight Detective can solve. Within Arkham City, Riddler has set up hundreds of riddles and death traps for Batman, abducting a massive amount of innocent people to be used as bait in his traps. Watching everything from his newly formed base of operations within the prison, Riddler hopes to finally watch Batman fail to solve his puzzles and rescue the innocents caught up in them.

Biography
With an obsessive need for attention, Edward Nigma is determined to be the most outlandish of Gotham City's criminals, concocting elaborate series of clues and riddles around his crimes. Batman has proven a worthy opponent, capable of deducing the Riddler's plans, but Nigma is dedicated to creating a mystery the Dark Knight will not be able to solve in time.

Attributes:
 * Genius intellect
 * Driven by a need to test his wits against law enforcement by leaving clues to his planned crimes
 * Compulsive need for attention

Batman: Arkham Origins
"Think of me as an information broker. I've got data handlers everywhere - feeding me all kinds of interesting stuff!"

- Enigma

The mysterious stranger known only as Enigma first catches the Dark Knight's attention when he notices a disturbance in his cryptographic sequencer, leading him to a GCR comm link tower with a booby-trapped mainframe. After piecing together a crime scene that involved the death of a maintenance employee, the Dark Knight becomes acquainted with the computer hacker who would one day be known as the Riddler. Enigma also had the man he hired to rig the mainframe access panel, John F. Baker, killed at the Diamond District to clean any traces of his involvement.

Although at first the Dark Knight suspects the hacker to just be another crook on Black Mask's payroll and, while the hacker is indeed aiding Black Mask's schemes (though he is intially unaware that it was actually the Joker who hired him, disguised as the crime lord), it is soon discovered that Enigma has plans of his own. By using a variety of methods, Enigma has been able to obtain massive amounts of blackmail on Gotham's most powerful citizens, planning to release the information to the public in order to inspire chaos in the streets.

Dismissing the Dark Knight's attempt to stop him as a minor inconvenience, Enigma continued to taunt Batman as he attempted to disrupt all the radio towers, but eventually Batman succeeded. Finally, after destroying all relays, interrogating all informants and collecting all the data packs, Batman came back to Enigma's HQ and destroyed his server. Enigma accepted temporary defeat, while claiming that he now holds onto the biggest, dirtiest secret that puts his collection of data to shame. Batman later unlocked Enigma's secret room, which revealed several items of interest: newspaper clips indicating Enigma's research on the Batman's identity (with the two main suspects being Bruce Wayne and Harvey Dent), pressure pads, cages, and one green glowing question mark that would later be referred to as the Riddler Trophy.

It is later revealed by Alfred that Enigma's real name is Edward Nashton, head of the GCPD's Cyber Crime division, explaining how he had so much access to the city's communications network and the extortion data he planned to release. With this knowledge in hand, Batman is prepared to apprehend Edward, who has since gone on the run, the second he resurfaces.

A coded message within the GCPD server and telecom rooms reveal that Nashton had only recently joined the organization as its Cyber Crime Division head, revealing that he had joined the GCPD simply to gain inside information through his newly acquired access to the entire city's infrastructure and files, which would eventually be used as extortion data on all of Gotham.

Cold Cold Heart
The next day, just as Mayor Hamilton Hill was about to make Peter Grogan Loeb's replacement for GCPD commissioner, envelopes from an anonymous individual were supplied to various media outlets containing evidence strongly implicating Hill and Grogan for ties with the Maroni Crime Family. It is strongly implied that Enigma had been responsible for exposing Hill's corrupt nature and the ensuing six-day protests as his "biggest, dirtiest secret."

On New Year's Day, Mayor Hill eventually ended up resigning in disgrace from office, although he had not ruled out a possible attempt at re-election during the new year. Regardless of whether he'll run for office or not, his resignation meant Grogan would not become commissioner.

This meant that, ironically enough, Enigma's plans had a profoundly positive effect on Gotham City as they finally revealed the corruption and conspiracy within Gotham's infrastructure and allowed the public access to the knowledge and evidence they needed to force their corrupt public officials out of office and appoint more ethical and noble individuals instead. Whether or not this was Engima's intentions is unknown, though his previous statements of wanting chaos in the streets seem to make it unlikely, given that the resolution to Hill's resignation ended on relatively peaceful terms, despite nearly a week of protests, and not the destruction Enigma had envisioned.

Batman: Assault on Arkham
At some point, he managed to be recruited into the Suicide Squad, which resulted in him learning about the explosives as well as how to deactivate them. The Riddler had been involved in The Joker's theft of a dirty bomb with enough power to wipe out more than half of Gotham should it go off. Sometime afterwards, he managed to steal data relating to the Suicide Squad. He then entered a communication with Director Amanda Waller where he attempted to prove his superiority by giving her riddles for her to solve.

However, unbeknownst to him, Waller had deliberately contacted him in order to stall him long enough to get a pinpoint on the location of his hideout in the Gotham docks and have him taken out in a black ops operation by A.R.G.U.S.. Upon learning this, he lamented that he should have quitted while he was "still ahead." However, he was rescued by Batman from his would-be assassins, and then captured and interrogated by Batman himself as he tried to escape in the confusion, due to Batman trying to track down Joker's dirty bomb. However, the Riddler doesn't know where it was located, so he was then sent to Arkham Asylum. The failure of the black ops mission resulted in Waller sending in the Suicide Squad to recover data from the Riddler and presumably assassinate him.

He eventually encountered the Suicide Squad, who had been dispatched with recovering the data of the Suicide Squad members, although he managed to help them with getting rid of their explosive bombs by shorting them out via electrotherapy. Unfortunately, he wasn't able to save King Shark from his explosive because his skin proved to be too tough to actually short out the bomb encased inside him. He also deduced that "Black Spider" was actually Batman in disguise, although he accidentally set off the electrotherapy voltage again after Batman shot a batarang into his arm. He managed to escape into the night after the Joker released the various Arkham inmates, taking advantage of the confusion.

Batman: Arkham Asylum
The Riddler was one of the many inmates who escaped Arkham Asylum after the Joker took control of the island. The Riddler made his way to a hidden location in Gotham City and contacted Batman by hacking into the communication signal the Dark Knight used to contact Oracle. In order to boast his superior intellect, the Riddler had organized a series of riddles around the island, ranging from a number of small trophies hidden in out-of-the-way spots to elaborate perspective puzzles. After escaping, he challenged Batman to find these, along with the additional challenge of solving riddles that described specific objects in various rooms.

Batman steadily solved every riddle, with the Riddler boasting his superiority to begin with but slowly becoming more enraged with Batman. Before solving the last few riddles, Batman located the Riddler's signal and notified the police of his whereabouts. After solving his final riddle, the Riddler began to implement Gotham's "greatest riddle." But before he could do so, the GCPD broke into his hideout on 225 O'Neil Avenue in Old Gotham. The police arrive there and arrest Riddler as he quotes to Batman that he cheated on his riddles. Riddler question marks in Dr. Young's book are found on his page and many villains' pages. He saw the book and wanted to know about a professional's viewpoint on the inmates. Some might be easy to manipulate or great allies to have in his eyes.

After Arkham
After being captured by the authorities in Arkham Asylum the Riddler was placed back into his usual holding cell. Not long after he is seen meeting with the Broker to discuss the location of the Riddlers new hideout, which is somewhere in the currently unopened Arkham City limits. Using Poison Ivy's aid, the Riddler manages a miraculous escape and immediately proceeds to his new headquarters which is complete with a custom monitoring surveillance system that allows the Riddler to watch several unfortunate victims be "tested" through his vicious death traps.

Later, Nigma attended Two-Face's trial against the Joker as a juror, voting the clown guilty, claiming that the clown "was neither mad nor genius- just utterly disappointing." Sometime later, Riddler allied with Black Mask and helped him in his escape plans, which immediately failed.

Riddler was also briefly mentioned by Hugo Strange. He states that his delusions of grandure and obsessive riddle compulsion continues to rule his every move. It also revealed his appearance: messy brown hair with glasses, green eyes and fingerless gloves with a question mark He is also wearing his signature green business suit with yellow question marks and on occasion his green bowler hat.

Batman: Arkham City
After Batman is imprisoned in Arkham City, Riddler kidnapped the prison medical staff  and used them as hostages in his elaborate death traps and puzzles around the city, in addition to leaving over 400 secrets in the city that can only be revealed through interrogating his gang. By kidnapping MPT Eddie Burlow and forcing him to allow his men to kidnap the staff under the threat of murdering them, Riddler was able to formulate his challenge, lastly arranging for one of his agents to bring Burlow to the Solomon Courthouse to be executed. He also gave each of his hostages, barring the final victim, Anne Bishop, frequencies to his "Engima Machine" (which was given to Burlow) that would ultimately reveal to Batman the location of each hostage room.

Setting up a total of six different hostage rooms, Riddler forced Batman to participate in his complicated obstacle course-esque challenges and, should the Bat fail, would allow Riddler to execute the doctors. After Batman saved each hostage, he discovered Bishop lacked the Enigma frequency, revealing that Riddler was forced to retreat and keep the rest of his victims until he could compose more elaborate puzzles for the Dark Knight in his hideout.

Once there, Nigma strapped his remaining hostages, including MPT Aaron Cash, to explosive helmets that would immediately detonate should they stop walking in a circle. With Oracle's help, Batman was able to locate Riddler's hideout, where he grabbed the Riddler from the wooden floor above and, after freeing the rest of the hostages, forced Riddler to walk, as well as leading him to believe the explosives on the helmet were still active. After deciding it was enough torture, Cash and the medical staff returned with Nigma in tow to the Cathedral, where Riddler was detained in a makeshift prison alongside Bane until Gordon's forces were able to evacuate the safe zone.

It can be assumed that after the evacuation and shut down of Arkham City, Riddler was placed in temporary holding cells while Arkham Asylum was refurbished for opening.

Pre-Arkham Knight
Riddler ended up being among those released by the government into the streets as compensation after the illegal and unethical nature of Arkham City was exposed to the public and the ensuing scandal. Commissioner Gordon protested this decision as Riddler was insane and should not be let onto the streets, but was ultimately forced to comply to the judge's ruling.

Afterwards, he managed to purchase the Gotham Sewers, and during this time he also attempted to emulate various watchgroups who expose stuff against "White Knights" by giving details of what Batman did to him, only for this to backfire horribly by receiving a string of hateful emails in response. It got so bad he initially attempted to yank out the motherboard of the computer, only to suffer from electrical burns as a result, and eventually planned to find a hammer to destroy the computer. The only reason he didn't was because an email came in stating his purchase of the Gotham Sewer system was accepted, to his satisfaction. He also began working on death traps near the train station, and also placed a plant in the GCPD while placing Riddler trophies throughout Gotham.

He later participated in a meeting with Gotham's top criminal kingpins (Penguin, Two-Face, and Harley Quinn) held by Scarecrow and the Arkham Knight regarding killing the Batman. Scarecrow during the meeting then lured Riddler away for reasons Riddler deduced was so the former could appeal to the latter's ego, with Riddler denying he even had one. Scarecrow then explained to Riddler they had a mutual foe, and requested that he try and orchestrate a plan with them, with the implication that doing it alone may result in Riddler failing against the Dark Knight. Riddler then stated that "maybe, just maybe, if [Scarecrow's] lucky, [Riddler] will coincidentally put [his] entirely separate and superior masterplan into effect" if Scarecrow tells him the day his plan will occur.

To this end, he needed bait for his plan. He then called Selena Kyle, aka, Catwoman, under the pretense of requesting a job for her to do. However, largely because of his preening egotistical delivery and Catwoman being reluctant to do a job for a "insecure little power-mad man child", Riddler had difficulty getting her to agree, eventually resorting to granting her request for information on the plot to kill Batman in exchange for doing her job.

He then is working on one of his Riddler Robots, although he seemingly couldn't get it to work. However, this was actually a ruse to Catwoman in order to ensure she bought the claim that he needed batteries for the robots, either Stagg Enterprise's Nimbus tech or an equivalent from Wayne Enterprises. When "showing" her the battery, he then revealed the truth that she was to act as bait for Batman, as he had deduced their "base" relationship to each other, though Catwoman warned him that she may exact revenge on him when this was over.

Batman: Arkham Knight
"Why hello there, detective. Yes, it's me, your most feared nemesis, the Riddler! Congratulations are in order! For you have arrived early for this - the next generation of my Riddles. I'm afraid the full particulars of my plan will have to remain unannounced, for the time being, but I see no harm in rewarding the harmless little glimmer of initiative you have shown with a sneak peek, a preview if you will, of the kind of conundrum I have in store."

- The Riddler

The Riddler makes his first appearance just after Batman re-enables the bridge controls to save Oracle. He appears on the triple screen T.Vs next to the train station and shows Catwoman being held hostage in a wheelchair. He welcomes himself to the Dark Knight and goes on to explain how Batman humiliated him after their last 'meeting' (referring to Arkham City). He expresses how Batman will not defeat him this time as it is 'impossible'. He tells Batman to come to the Pinky Orphanage, where Catwoman is being held, or she will die. Left with no choice, Batman Heads to the Orphanage to rescue Catwoman.

After Batman removes Catwoman from the wheelchair in the main room of the Orphanage, he appears on a big T.V and 'introduces' his assistants to Batman & Catwoman: Robots. After Batman and Catwoman work together to defeat the robots, The Riddler explains that Catwoman has a collar on her neck, that requires 9 keys to unlock, but in order to collect the keys Batman must face a series of challenges in order to do so. The Riddler also explains that Catwoman cannot leave the orphanage without the collar, thus it is up to Batman to save her.

As Batman completes The Riddler's challenges to free Catwoman of the collar he constantly reappears on the screens around Gotham city, boasting about how he is superior to Batman and that he will never win. After Batman and Catwoman work together to remove all 9 keys on Catwoman's collar; the two of them head for the exit of the orphanage but the Riddler himself appears in the main room, in a green giant mechanical robot. He fights Batman and Catwoman for a few moments but vanishes under the ground and tells Batman that in order for him to fight the Riddler, he must solve every Riddle in Gotham City.

As Batman comes close to solving last of Nigma's riddles, Nigma becomes increasingly shocked and frustrated. He nevertheless, boasts about how he is ready to fight Batman and will beat him once and for all. When Batman solves the final riddle, Nigma congratulates him, and Batman confronts him at the Pinky orphanage. The Riddler, in his robot, rises up from the main rooms floor, in a green shield ready to fight Batman.

The Riddler summons many robots to attack Batman. Batman destroys most of them with ease, but many of them are color coded only to Catwoman, meaning he cannot defeat them all. Catwoman then appears on top of a beam in the main room and jumps down to help Batman defeat the robots, much to Nigma's dismay.

After Batman and Catwoman, destroy each round of robots, Batman grabs Nigma from his robot and knocks him out of the floor. Knocked unconscious, Batman drags the Riddler into the Batmobile to take him to the GCPD. Batman explains to Catwoman his plan, (Knightfall) they share a kiss and depart. While Batman is driving Nigma to the GCPD, Nigma is frustrated and accuses Batman of cheating the whole time, claiming that Batman having Catwoman's help wasn't part of the rules for their final fight, and responding to Batman's observation that putting him in an impossible fight was hardly playing fair by arguing that Batman deserved to lose if he couldn't hack the robots' operating systems mid-combat.

After Batman locks him up in the Maximum Security Cell along with all the other villains, he refuses to believe Batman is Bruce Wayne (either because he was jealous of the Scarecrow for unmasking Batman to the rest of the world first or because he refuses to be wrong in his theory that "no one is that selfless", due to his past theory that Batman funded himself using money stolen from his enemies) and complains how he is surrounded by inferior minds. Nevertheless, he remains in the maximum security cell, under close watch from the GCPD guards.

Catwoman's Revenge
Despite being in jail, however, he still made various plans. The night after his capture, he attempted to have his computer in his main base, located at Winslow's Toy Shop, create various Riddler-bots to bust him out of jail, as well as various humans at the toy shop keep guard via key cards, whom he paid via an electronic account. In order to ensure he wasn't suspected, he also called his computer under the pretense of hiring a lawyer. He initially intended to have the computer start the jailbreak protocol. However, because his computer did not understand the term "run", he was forced to hack into the system to start it himself via his phone.

However, Catwoman uncovered the location of the hideout via an informant, and after stealing the keys and disposing of the guards, broke in, albeit with a puzzle mechanism that annoyed her enough that she vowed this was officially the last time she had to do a puzzle to get through to Riddler. Desiring revenge against the Riddler for his earlier stunt in outfitting an explosive collar on her, she intended to steal his entire bank account of $2,730,000 as well as set the computer to self-destruct.

However, Riddler became privy to her actions, and had the computer deploy several Riddler-bots as well as various traps against her. However, she ultimately succeeded in exacting her revenge to Riddler, despite his eventually resorting to begging for her not to do it (which was also his fault as while gloating about the encryption protocol he inadvertently granted her access due to her using his voice on speaker while he was taunting her). To make matters worse for him, Cash caught on and heard the entire thing, also having several policemen restrain him and then proceeded to taser him just as the computer self-destructed and completely destroyed his base and the last of his robots and resources, cementing his defeat and imprisonment once and for all.

Datapacks
Amusement Mile:

The Bowery:

Burnley:

Coventry:

Diamond District:

Gotham Pioneers Bridge:

Industrial District:

Park Row:

Sheldon Park:

Network Relays
Amusement Mile:

The Bowery:

Burnley:

Coventry:

Diamond District:

Gotham Pioneers Bridge:

Industrial District:

Park Row:

Sheldon Park:

Arkham Asylum Challenges
Each unique set of locations in the game (e.g. one building or one of the island sections) has a number of associated Riddler Challenges, which can be solved to earn XP and unlock bonuses, such as character profiles, character trophies, and challenge mini-games. There are several distinct types of challenges:


 * Riddler Trophies: These green question-mark statues are scattered all over, sometimes out in the open, sometimes hidden in difficult-to-access areas.
 * Riddles: More or less cryptic clues describing specific locations or objects. To solve the riddle, the described object or scene must be visible on-screen and must be "scanned". These range from obvious (One riddle simply name-drops Prometheus and requires Batman to scan a wanted poster for the villain) to the cryptic (one riddle mentions the "end of days" for a murderer, referring to the cell where the Calendar Man sleeps).
 * Joker Teeth: The Joker has scattered a lot of "chattering teeth" gag toys, often in groups of two or three. To fulfill the challenge, a certain number of teeth (5, 10, 20) must be destroyed.
 * Perspective Riddles Two halves of a question mark have been painted on the scenery (only visible in Detective Mode). When viewed from the right perspective, they line up to form a whole question mark, which can be scanned to solve the riddle.
 * Interview Tapes: Audio tape reels containing patient interviews and doctor's notes can be found in many locations, giving insight into some of the major characters in the game.
 * Chronicles of Arkham: All over the Island there are scribbled messages on decorative stones, in the same spiraling style that Amadeus Arkham once used. Batman must scan these messages to decode them.
 * Riddler Maps: Each location set contains one map which reveals the approximate placement of all the other challenge items, by placing floating question marks on the in-game map.

Some of the items are initially inaccessible and can only be accessed after Batman has collected a specific gadget. Since this requires revisiting locations when the actual plot of the game does not require it, the game allows the player to continue exploring the island, even after the reaching the end, in order to achieve 100% completion.

Riddles
The many riddles and puzzles the Riddler has scattered through Arkham include cryptic clues describing specific locations or objects. To solve the riddle, the described object must be visible on-screen and must be "scanned". The Riddler will pose actual riddles for Batman to solve in specific areas throughout Arkham, who will be notified as soon as he enters a room. These riddles are generally solved by one of two ways but the means in which you solve them remains the same. Batman will either need to find a specific object the Riddler is talking about or find a disjointed question mark symbol and line it up from a certain perspective.

After receiving the first message from the Riddler in the Intensive Treatment Lobby, Batman must turn around and look to the left of the ladder for a portrait of Warden Sharp, scanning it to solve the riddle.
 * Riddle 1: "Don't cut yourself on this sharply observed portrait."

Before leaving the Intensive Treatment Lobby, Batman must look around the windows of the offices in the middle of the room to solve this puzzle. He's looking to put together a hidden question mark. Its body will be separated from the period. Batman must use Detective Mode to find the body of the question mark on a window of the office, then turn around until he has lined up the dot on the wall just underneath the body. When it looks like a "?", Batman must scan it to complete this riddle.
 * Riddle 2: "A puzzle has many sides, but only some are visible."

To solve this riddle, Batman must enter the Utility Corridor of the Intensive Treatment Center. When he enters the guards' locker room, Batman must listen for the sound of a radio and find it. Batman then must look at the dial on the radio to locate the name Jack Ryder, scanning it to complete the riddle. Doing so will unlock Jack Ryder's Character Bio.
 * Riddle 3: "You don't know Jack about Gotham. Tune in to find out."

In the Cell Block Transfer Corridor of the Intensive Treatment Center, Batman must use the Cryptographic Sequencer to unlock a door on the right. Unlocking the door will allow Batman to enter Aaron Cash's office. Batman may proceed up the stairs and look at the framed picture on Cash's desk, scanning it to solve the riddle.
 * Riddle 4: "Hook up with the relatives before you're transferred out of here."

To solve this riddle, Batman must jump down on top of the locked elevator Scarecrow used to escape in the Intensive Treatment Center. Crawling through the ventilation shaft here, Batman will find a cave littered with paperwork - scan the blueprints to solve this riddle.
 * Riddle 5: "Dr. Jonathan Crane plans on elevating fear to new depths."



When Batman revisits the Transfer Loop in Intensive Treatment, halfway through as he heads east is an office that Batman needs to crouch to get into. Once inside, Batman must turn around and scan the advertisement of Penguin's Iceberg Lounge to solve this riddle. This is found in William North's office.
 * Riddle 6: "A top hat and tails is the only dress code for this party in the North."

Batman must use the Explosive Gel on the breakable wall in the main area of the Patient Pacification Chamber and then scan Maxie Zeus's cell to solve this riddle. Doing so will unlock a Character Bio for Maxie Zeus.
 * Riddle 7: "Even I was shocked when I saw how Maxie Zeus was treated!"



To find this riddle-clue, Batman must be in the Holding Cells where the game began. Batman must enter the Riddler's cell with the green question marks on the wall, scanning the interior to solve this riddle.
 * Riddle 8: "Where would you find my home sweet home?"

Batman may look across the water from the clock tower in Arkham East toward Gotham City. To solve this riddle, Batman must look for the Wayne tower along the skyline (the one with the giant W on it). He must scan the tower to solve this riddle. Doing so will unlock Bruce Wayne's Character Bio.
 * Riddle 9: "Gotham's greatest family towers over the city."

Batman must stand on the top edge of the clock tower in Arkham East and look south to see the body of the question mark on the roof below to find this riddle. The hidden period is on the ledge of the platform. Batman must line the two up in his vision and scan them to complete this riddle.
 * Riddle 10: "My challenges appear to those with the correct position in life."

Near the cemetery entrance in Arkham East, there is a lit-up tombstone with the name Amadeus Arkham carved onto it. Batman may scan this headstone to complete the riddle. In doing so, the Character Bio for Dr. Amadeus Arkham will be unlocked.
 * Riddle 11: "The legacy of this island has been well and truly buried."

To decipher this puzzle, Batman must stand outside the ruined building, by the archway in Arkham North. If Batman triggers Detective Mode and looks up, he will be able to see the body of a question mark on the underside of the top of the archway. After lining this up with the dot which is on the ceiling above it, Batman can scan the question mark to solve this riddle.
 * Riddle 12: "Now I see it, now you don't!"

At the north end of this area is the locked gated entrance to Arkham Asylum. Just to the right of it is a see-saw with the hats of Tweedledum and Tweedledee on it. Batman must scan this to solve the riddle. Once completed, the player will receive Tweedledum and Tweedeldee's Character Bio.
 * Riddle 13: "Tweedledum and Tweedledee SAW it, can you SEE it?"



Once Batman has hacked into the western guard station at Arkham North, he will notice the old Harvey Dent campaign flyers plastered on the back wall. Scanning these will solve the riddle.
 * Riddle 14: "Let's face it, there are two Dents on the wall."

When Batman grapples up to the balcony above the entrance to the Penitentiary at Arkham West, it is here he can look down to see the body of a hidden question mark. Batman will need to line this up with the period which is on a railing of the balcony. Batman must line it up, then scan it to solve this riddle.
 * Riddle 15: "Do you see what I can see? No? Then maybe I am in a stronger position."

With the Range Amplifier upgrade for the Cryptographic Sequencer Batman can hack into the room above the Cell Block entrance to the Penitentiary. Within are the bodies of three unfortunate victims of Mr. Zsasz, arranged to be seated around a table. Scanning them will solve this riddle.
 * Riddle 16: "Zsasz is counting on you finding his work."

If Batman will grapple onto the horizontal beams in front of the Arkham East doors, he can look up to his left and use the Ultra Batclaw to pull the breakable wall down. Batman can then grapple into this alcove and scan the canisters of fear gas stored here to solve this riddle.
 * Riddle 17: "Does Scarecrow's gas break down barriers as it drives you insane?"

In the northwest area of the lowest level of the Sanitarium is Killer Croc's former cell littered with bones. Batman must scan it to solve this riddle. If the player does, the player will get Killer Croc's Character Bio.
 * Riddle 18: "Tick! Tock! News flash! Someone is not getting out of here alive."

There is a breakable floor, on the second level of the Sanitarium. Batman may blow it open with his explosive gel, then use Detective Mode to see the question mark along the rim of the hole. There's a period on the floor below at a slanted angle. Lining the two up and scanning them will solve this riddle.
 * Riddle 19: "A question can only be answered from a new perspective. Don't you agree?"

To find the answer to this riddle, Batman must visit the front desk of the Medical Facility, located in the southern section of the Medical Foyer hallway. Here, the plaque on the wall is easily located with the Waynes' name on it. Scanning it will solve the Riddler's clue and also allow Batman to unlock the Alfred Pennyworth Character Bio.
 * Riddle 20: "Is the generosity of our benefactors on the Wayne?"

After rescuing Dr. Chen in the Surgery Room of the Medical Facility, Batman may grapple to the upper balcony (where the Joker's men had been waiting to ambush him) and locate the whiteboard with the night shift schedule for the Arkham staff. Scanning the board (With Thomas Elliot's name on it) will complete the riddle. He was working on the Mad Hatter and Firefly. Doing so will unlock Hush's Character Bio.
 * Riddle 21: "Shhhhhh! Rumors persist that Tommy Elliot operates in Arkham. Can it be true?"

After clearing the Patient Observation area of the Medical Facility of the toxic gas, Batman can enter the small room with an easily-breakable roof and scan the newspaper clippings about Firefly on the old cabinet door to solve the riddle. Doing so will unlock Firefly's Character Bio.
 * Riddle 22: "Was this Firefly too hot off the press?"

After Batman awakes back in the Morgue after defeating the Scarecrow for the first time, he may look on the tray near the middle of the room for a jar with lips, a nose and a few fingers in it labelled with the nickname of Warren White. Batman must zoom in using his cowl's vision and scan the words "Great White Shark" on the jar to solve the riddle. Doing so will unlock the Character Bio for The Great White Shark.
 * Riddle 23: "What silent killer of the oceans can be found in a tiny jar?"

Osito (Spanish for "little bear") the teddy bear of a young Bane, can be found on the table in the Experimental Chamber of the Medical Facility next to a secret map left by the Riddler. Batman may scan the bear to complete this riddle. Doing so will unlock Bane's Character Bio.
 * Riddle 24: "Is this bear the Bane of his life?"



Batman can use the vent above the Morgue elevator doors in the Sanatorium to enter the elevator shaft and drop down to the lower level. Crawling through the vent closest to the base of the elevator shaft, Batman will enter Secure Access. From this vent system, he may drop down into the locked office of former Arkham doctor Harleen Quinzel, plastered with pictures of the Joker and untouched since Quinzel's dismissal. Scanning these pictures and cluttered desktop will allow Batman to solve this riddle.
 * Riddle 25: "Are you going to take your hat off to Harley, Bats?"

After taking out the Joker's goons in the Main Hall of the Arkham Mansion, Batman may step into the short hall on the right and scan the portrait of Commissioner Gordon on the wall to solve this riddle.
 * Riddle 26: "Who is the main man in the main hall?"

To complete this riddle, Batman must scan the many circles scrawled across the interior of the abandoned cell of the late Amadeus Arkham, located in the North Corridor of the old Arkham Mansion.
 * Riddle 27: "Did Amadeus go mad, or was he just dizzy?"

After taking out the three thugs attempting to break into Penelope Young's Office, Batman can head up the stairs and scan the corpse of Ra's al Ghul sticking halfway out of the freezer to solve this riddle. The corpse vanishes towards the end of the game. When scanned, the player will get Ra's al Ghul's Character BIo.
 * Riddle 28: "It'll be a cold day in hell when this Ghul rises again."

Batman must scan Black Mask's original wooden mask, mounted on the wall in Dr. Young's Office, to solve this puzzle-clue. Doing so will unlock the Character Bio for Black Mask.
 * Riddle 29: "How do you mask your feelings without losing control?"

When Batman enters the Southern Corridor of the Arkham Mansion, on the left wall is a glass display case with a top hat and a dusty collection of the Penguin's umbrellas encased within. Batman must scan it to solve the riddle. Doing so will unlock Penguin's Character Bio.
 * Riddle 30: "What does a bird need in the rain?"



Across from where Batman fights the first stun baton-wielding thug in the East Wing Corridor of the Arkham Mansion, there is a glass display case with Catwoman's mask and clawed gloves mounted within. Scanning it will solve the riddle. Doing so will unlock Selina Kyle's Character Bio.
 * Riddle 31: "A game of cat and mouse can be painful."

In the Warden's Office, Batman can scan the dummy Scarecrow, put on display by Sharp in the glass case on the southern wall, to solve this riddle.
 * Riddle 32: "Isn't the Warden too old for a puppet show?"

In the West Wing Corridor of the Arkham Mansion, Batman may use the Cryptographic Sequencer to unlock the door to the south. Now he must the Line Launcher to zip over the electrified floor. Once inside this small room at the end of the corridor, Batman can look at the psychiatric files of Hugo Strange on the ground to the left, labeled "Strange Files." Scanning these files will solve this riddle. After you have solved the riddle, you may use the Cryptographic Sequencer to disable the electrified floor, so that you may walk back out. Doing so will unlock Hugo Strange's Character Bio.
 * Riddle 33: "Our Records show that a Strange transfer request was made in this room."

Standing in front of the mirror of the restroom in Cells Access of the Penitentiary and scanning Batman's reflection will solve this riddle.
 * Riddle 34: "How do you reflect on your successes and failures, Batman?"

After obtaining the Cryptographic Sequencer from Warden Sharp in the Security Control Room of the Penitentiary, Batman will go back down to the lower level of the area and pass by the glass cell of Clayface. Scanning Clayface as he impersonates Warden Sharp, James Gordon, or Aaron Cash will decipher the riddle. If done so, the player will unlock Clayface's Character Bio.
 * Riddle 35: "A case of mistaken identity?"



When Batman returns to the Main Cell Block from The Green Mile, he can enter the western section of the cell block, where the Joker has released the more unsettled patients housed there. Entering the second cell on the right, Batman will find himself in the cell of the Calendar Man. Scanning the scattered calendar days covering the cell will solve this riddle. Doing so will unlock Calender Man's Character Bio.
 * Riddle 36: "This room is the end of days for even the most celebrated killer."

Up the stairs and about halfway down the hall in Controlled Access of the Penitentiary, is the infamous cell of Two-Face, mirroring his duality. Upon entering the cell, Batman will see the "Vote Harvey Dent" poster on the wall. Scanning this campaign poster will solve the Riddler's latest clue. Solving this riddle will unlock Harvey Dent's Character Bio.
 * Riddle 37: "What has four walls, two sides, and one ex-DA?"

After locking Harley Quinn in a cell in the Penitentiary's Extreme Incarceration, Batman can stand in the middle section of the three formerly-electrified floors here and look to the southeast to see Mr. Freeze's cell, covered in ice. Scanning the cell will solve this riddle. Do this to get Mr. Freeze's Character Bio.
 * Riddle 38: "All alone in your cell? Why don't you break the ice with the most dangerous prisoners?"

From the small upper office to the north in the Guard Room of the Penitentiary, Batman may look south with Detective Mode on and spot this question mark across the way. Lining up the body with the period and scanning it will complete the riddle.
 * Riddle 39: "When is something right in front of you, but still hidden from you?"

After clearing the toxic gas from the Guard Room, Batman can drop into the room below him. Toward the east will be a bulletin board. Once Batman scans the wanted flyer of Prometheus the riddle will be solved.
 * Riddle 40: "Prometheus, Arkham guards' most wanted and most hated."



Once the Joker has seized Arkham East, the Botanical Gardens will come under his control as well. Looking to the left as Batman steps out into the larger portion of the Glasshouse Entrance, he will see two dead security guards crumpled around a bench, apparently posed there by Zsasz. If Batman scans them, he'll solve this riddle.
 * Riddle 41: "Is the number up for these guards?"

Riddle 42: "This fiendish puzzle literally appears out of thin air."

At the air duct in the Southern Corridor of the Arkham Mansion, Batman may turn around once he is inside the air duct and stand on the edge of the ducts while looking down. Using Detective Mode, Batman will see the body of the question mark below while the period is on the edge of the air duct. Once Batman lines the two up and scans them, the riddle will be solved.

Riddle 43: "What time is tea time in Wonderland?"

Along the second level of the Botanical Gardens, Batman will find the Mad Hatter's tea set balanced on one of the back wall plant pots. If Batman scans the tea set, he'll solve this riddle. Doing so will grant the player access to Mad Hatter's Character Bio.

Riddle 44: "Remember the Waynes? How could anyone forget?"

Batman will pass a park bench in the middle of the Statue Corridor of the Botanical Gardens. If Batman examines the plaque on the bench, it's a dedication to Thomas and Martha Wayne. Scanning the plaque will complete the riddle. Do this to get the Character Bio for Thomas and Marth Wayne.

As Batman crawls through the vent shaft away from the Flooded Corridor of the Botanical Gardens, there is a grate in the floor Batman can look through as he passes over it. The Ratcatcher's equipment is stored here. When Batman scans the gear, the riddle will be solved. Do this to get Ratcatcher's Character Bio.
 * Riddle 45: "The Ratcatcher needed more than just his charm to lead his army."

About crossing the bridge in the Abandoned Corridor of the Botanical Gardens, Batman can cling to the column to the left and shimmy around to the left, then pull himself onto the platform here. Heading north along this platform and crawling under the broken part, Batman will arrive at the site of a hidden question mark. Batman may look down when he reaches the end of this platform. He'll see most of the question mark on the edge of the platform he is standing on but the corner of it is down below. Lining them up and scanning them will solve this riddle.
 * Riddle 46: "This challenge can only be seen by those with a different view on life."

Batman must walk south down the dead end hallway in the Flooded Corridor in the Botanical Gardens to find a bench with a handful of broken toys on it, having been taken apart by the Arkham inmate Humpty Dumpty. Scanning the toys will solve this riddle. Do this to unlock the character bio for Humpty Dumpty.
 * Riddle 47: "Looks like all the king's horses trampled all the king's men."

In the eastern half of the Flooded Corridor is a beheaded statue of Constance Arkham, vandalized by Martin "Mad Dog" Hawkins. Batman must find the small gold plaque on the base of the statue and look at it in first-person view to see that "Mad Dog" has been etched into it. Batman must scan the plaque it to solve the riddle.
 * Riddle 48: "Is this a tribute to what a mad dog left behind?"

In the Aviary, just to the northwest of a ledge in a wall and a little lower Batman will spot a skeleton in a cocoon that is webbed to the wall, a reference to Killer Moth. Scanning the skeleton in first-person mode will solve the Riddler's clue and also allow Batman to unlock the Killer Moth patient report. Do this to unlock Killer Moth's Character Bio.
 * Riddle 49: "There's no closet in the Gardens, so someone is using the roof instead."

In the security guards' control office, on the upper level of the Main Cell Block, is The Ventriloquist's Tommy gun mounted on the wall. Batman must scan the machine gun to solve this riddle. Do this to gain access to The Ventriloquist's Character Bio.
 * Riddle 50: "Two people, one voice, no gun?"

As Batman continues to solve all 50 riddles and collect the items, Riddler initially taunts him with the "slowness" of his progress, but becomes increasingly agitated as the amount of solved riddles rises. He accuses Batman of cheating, possibly by looking up the riddles on the internet. Once enough riddles have been solved, Batman manages to deduce the Riddler's current location and transmits it to the Gotham Police.

Park Row
This riddle can be solved by finding and scanning Catwoman's apartment. To solve this riddle scan a collapsed part of Arkham City's streets including signs warning of "Catastrophic Subsidence". Near the Solomon Wayne Courthouse there is Harvey Dent's old campaign office. Scan this for the solution to this riddle. After Batman's encounter with the Mad Hatter, scan the copy of Alice in Wonderland in his hideout on the table next to him and this riddle is solved. Scanning the shop front of "Baudelaire", which mentions that the proprietor is Pamela Isley, will answer this riddle. Find the door that is the entrance of TYGER Confiscated Goods and scan it to solve the riddle. Solved by aligning and scanning the question mark whilst using Detective Mode from the Solomon Wayne Courthouse flagpole. Scan the sign on Hugo Strange's old psychiatry practice, 'Strange Minds', opposite the Monarch Theatre, to solve this riddle. Outside the Monarch Theatre there is a poster for Basil Karlo's film "The Terror". Scan this and the riddle will be solved. Behind Monarch Theatre find and scan the signpost with "Crime Alley" written on it. The riddle of course refers to young Bruce Wayne and his parents' fateful trip tha that part of town. Scan the "Ace Chemicals" sign at the top of the Ace Chemicals building to solve the riddle. Inside Solomon Wayne Courthouse, scan Two-Face's twin pistols and the gavel on the judge's desk and the riddle will be solved. To solve the riddle, go down into the basement of Solomon Wayne's Courthouse and scan Calendar Man's cell. Inside the Church/Medical Center, find the photograph of Aaron Cash and his family, scan it to solve the riddle.
 * Riddle 1: “Its far from PURRFECT, but she calls it home.”
 * Riddle 2: “You’ve been warned. People aren’t the only unstable part of this city.”
 * Riddle 3: “DA campaign special: Get two votes, for the price of one.”
 * Riddle 4: “I wonder how you can land an appointment with this milliner? Perhaps it would be best to book?”
 * Riddle 5: “Has this flower turned over a new leaf?”
 * Riddle 6: “This den is where the vicious animals take your treasure. Is it theft, if it’s already stolen?”
 * Riddle 7: “This question can only be answered from an unusual perspective. Can you get yourself there?”
 * Riddle 8: “Do you have strange thoughts? Maybe you should seek help?”
 * Riddle 9: “I am an actor who can transform a film with the final cut. Who am I?”
 * Riddle 10: “Six legs went in and only two came out. Where am I?”
 * Riddle 11: “Acing this chemistry test will illuminate you.”
 * Riddle 12: “BANG! BANG! Order in the court.”
 * Riddle 13: “Who’s crazy enough to date this guy?”
 * Riddle 14: “If you find the name, does the Cash come hand in hand?”

Amusement Mile
To solve this riddle you need to align and scan a question mark on the back of a billboard whilst using Detective Mode. To reveal the dot, you need to open a door using a remote electric charge. Find and scan a poster of the Flying Graysons to solve the riddle. This poster can be found by scanning the wall on the left of the broken down bridge, where Vicky Vale was saved. Scan the wall to the left of the giant dice. Scan the front of Maxie Zeus' establishment, called Gotham City Olympus, to solve the riddle. On the highest level of the bridge over the docks the Industrial District and Joker's Funland, Scarecrow's mask can be found in a small pile of hay. Scan Krank Co. Toys, the building that Bane is using as his hideout, to solve the riddle. (Note: You must be outside of the toy store to do this, not inside, and you must scan the bear on the roof to properly solve the riddle.) Scan the Bat-Signal on the roof of the GCPD Building to solve the riddle. To solve this riddle, find the building over grown with plants - Poison Ivy's apartment. Look towards the base of the building and scan the biohazard container in the water there. (To get close enough, you may have to use the Freeze Blast to create a temporary raft.) Look out toward the ocean. You'll see Arkham Island. Scan it island to solve the riddle. Find the car park beneath the GCPD Building and scan the parking spot labelled James Gordon to solve the riddle. The car park can only be reached once the line launcher is unlocked.
 * Riddle 1: “This question can only be answered from an unusual perspective. Can you get yourself there?”
 * Riddle 2: "Which acrobat family gambled with their lives, and has now been left to fly solo?"
 * Riddle 3: "Would an invitation to party like the gods be a bolt out of the blue?"
 * Riddle 4: "If you're afraid, don't be scared to crow about it."
 * Riddle 5: "This place has taken a TURN for the worse. Is it a little BEAR for your tastes?"
 * Riddle 6: "Always a shining example of Justice? Not if you ask me."
 * Riddle 7: “If she is the ROOT of evil, how could anyone be expected to CONTAIN her?”
 * Riddle 8: "Look out! Can you see where the madness began?"
 * Riddle 9: "Park in his spot and you may just get a ticket."

Industrial District
To solve the riddle, scan the sign for Falcone Shipping on the side of the boat in North Gotham Dock. After telling Mr. Freeze where Nora is, return to Storage Warehouse 5B and scan Mr. Freeze and his wife to solve the riddle. Align both parts of the question mark, the dot is on a tower and quite a distance from the top of the question mark which is on one of the walls surrounding Wonder Tower. Scan it where it is complete, this will solve the riddle. Find and scan the newspaper stand to solve the riddle. It is near the crane closest to the Arkham City perimeter wall. Once inside Zsasz's Hideout, look on his desk in the center of the room and scan the business cards for the Broker. This will solve the riddle. Find the advertisement for "Otis Flannegan Pest Control" and scan it to solve the riddle. It is opposite the large metal gate just before the Steel Mill. Scan the sign for Falcone Warehousing and Storage to solve the riddle. There is an inmate positioned as though leaning against a pay phone, he has been murdered by Zsasz. Scan the inmate to solve the riddle. At the most Southern point of the map, at the back of Joker's Steel Mill, a giant hole has been blasted in the wall and then sealed off. Nearby are posters stating that Black Mask has been recaptured and on the wall next to the sealed hole is graffiti of Black Mask's face. Scan this and the riddle will be solved.
 * Riddle 1: "Which notorious family keeps talking trash?"
 * Riddle 2: “Can you find this cool couple before the romance thaws?”
 * Riddle 3: "This riddle can only be answered from an unusual perspective. Can you get yourself there?"
 * Riddle 4: "Breaking news! Get out while you still can."
 * Riddle 5: “If you’re planning on making a mark in Arkham City, you’ll need a special kind of realtor.”
 * Riddle 6: “Was this parasite ratted out, or does he continue to plague Gotham?”
 * Riddle 7: "Air, sea or land. It would be criminal not to use these guys, wouldn't it?"
 * Riddle 8: “Does Zsasz still pose a threat? This guy called to find out.”
 * Riddle 9: “Did you hear the HOLE story of how Black Mask escaped?”

Subway
Scan a sign that is advertising The Vicky Vale Show to solve the riddle. Use the reflection of a reversed question mark part and make it join up with its respective dot. Scan the end result to solve the riddle. Scan an advertisement for Solomon Grundy's ability to 'cheat death' to solve the riddle. Scan a picture advertising Santa Prisca, Bane's native country and the birthplace of the drug Venom, to solve the riddle. Explosive Gel can be used to break into Killer Croc's bedroom, as an Easter Egg. Scan his shock collar from Arkham Asylum to solve the riddle.
 * Riddle 1: "BOARD at drive-time? I'm not going to broadcast any more clues!"
 * Riddle 2: "This question can only be answered from an unusual perspective. Can you get yourself there?"
 * Riddle 3: "Coming back from the dead is cheating in any day of the week."
 * Riddle 4: “It’s vacation time. Where shall I go? Somewhere venomous?”
 * Riddle 5: "This Killer was collared, but is he now on the loose?"

The Bowery
Scan the sign for the Jezebel Center to solve the riddle. On the wall of Cyrus Pinkney's Institute for Natural History there are numerous wanted posters of Bruce Wayne. Scan them to solve the riddle. Opposite Cyrus Pinkney's Institute for Natural History there is a hat shop. Scan the sign to solve the riddle. Scan the sign above Sal Maroni's Italian Restaurant to solve the riddle. Scan the Magic and Props shop sign to solve the riddle. Find and scan the billboard advertising Quincy Sharp's mayoral campaign for Gotham City to solve the riddle. After you rescue the Mayor from thugs just inside the entrance to Arkham City you bring him to the spot right in front of it. To solve this riddle, scan the TYGER Inmate Behavioural Analysis Unit door. On the balcony above Arkham City's entrance there is a plaque dedicated to the opening of Arkham City with Quincy Sharp's name on it. Scan the plaque to solve the riddle. Use the Cryptographic Sequencer in the Processing Center to get into a room where you can align the question mark that is partially on the window in Detective Mode. Scanning the question mark will solve the riddle. Scan the deceased TYGER guard that is strapped upright in the Processing Center to solve the riddle. Simply scan Wonder Tower to solve the riddle.
 * Riddle 1: "You don't have to be crazy to shop here, do you?"
 * Riddle 2: "Arkham City is not the place to be rich or famous. Bruce Wayne has never felt quite so wanted."
 * Riddle 3: "Cowboy, trilby or bowler? Hats off to anyone brave to try one on."
 * Riddle 4: "The feuding families always sit down to a good meal. Will there be a massacre?"
 * Riddle 5: "You're a dummy if you don't try and buy one."
 * Riddle 6: "Do you need to look SHARP to campaign for change?"
 * Riddle 7: "Studies have shown that if you're not on your best behavior, you'll come out crazy. How Strange?"
 * Riddle 8: "Was the writing on the wall from the moment you entered?"
 * Riddle 9: "This question can only be answered from an unusual perspective. Can you get yourself there?"
 * Riddle 10: "You don't want to be caught off-guard in this place, do you?"
 * Riddle 11: "My intellect towers over yours, Batman. I wonder if you'll ever solve this riddle?"

Steel Mill
Find the poster in the Steel Mill for Boyle Cryogenics and scan it to solve this riddle. Use Detective Mode to find the question mark and align it. Scan it to solve the riddle. To solve the riddle, find and scan Harley's hammer which is propped up against a wall near a Harley Head. Dr. Harleen Quinzel's doctorate is on display in the office room opposite the one in which Joker's thugs were torturing the doctor. Scan it to solve the riddle. In the Steel Mill the Abramovici Twins have reconciled and are talking to each other. Scan the brothers and the riddle will be solved. In Harley Quinn's office, her outfit from Batman: Arkham Asylum is on display. Scan it to answer the riddle. In the basement of the Steel Mill there is a box of items that the Joker used throughout his career in the Comics. These include an acid-squirting flower, a gun that shoots a flag saying 'Bang!', and a fish.. Scan this to solve the riddle.
 * Riddle 1: “What can BOYLE and Freeze at the same time?”
 * Riddle 2: “This question can only be answered from an unusual perspective. Can you get yourself there?”
 * Riddle 3: “Do you really need to hammer it home? Everyone knows Harley is stupid.”
 * Riddle 4: “Surely someone was clowning around when they qualified this person?”
 * Riddle 5: “Once assembled, do these two become one again?”
 * Riddle 6: “The more things change the more they stay the same. What dummy said that?”
 * Riddle 7: “What’s a funnyman without his box of tricks?”

Museum
Scarface, the Ventriloquist's dummy, is on display in the first display room. Scan him to solve the riddle. Scan the Cobblepot family portrait just before the entrance to the Gladiator Pit to solve the riddle. Bud and Lou, the Joker's two pet hyenas, were shot by the Penguin and stuffed. They are on display in the Penguin's War Room in the Museum. Scan them to solve the riddle. Behind the display case that Penguin was keeping Mr. Freeze in, there is a poster advertising the circus act Hammer and Sickle. Scan it to solve the riddle. Use the Freeze Blast to create an ice platform on the water. Then grapple toward land until you align both parts of the question mark. Scan that question mark to solve the riddle. In the Iceberg Lounge, scan Officer Strickland, who is holding one of the Penguin's umbrellas, to solve the riddle. Scan the top hat-wearing mannequin that is on display in the Iceberg Lounge to solve the riddle. Three skeletons posed like the Three Wise Monkeys are on display on the bottom floor of the Penguin's Armoury. Scan them to solve the riddle.
 * Riddle 1: "Who's in control here? The puppet or the puppeteer?"
 * Riddle 2: "Was he framed? Or does it just run in the family?"
 * Riddle 3: "Have Joker's pats laughed themselves to death or just eaten too much?"
 * Riddle 4: "Brothers in arms, Brothers at war. Who is right? Who's... Left?"
 * Riddle 5: "This question can only be answered from an unusual perspective. Can you get yourself there?"
 * Riddle 6: "How do you protect yourself when it's raining bullets?"
 * Riddle 7: "Can anyone TOP the Penguin when it comes to the full VIP treatment?"
 * Riddle 8: "See no evil, hear no evil, speak no evil, or there will be explosive consequences."

Wonder City
Scan the globe in the middle of Wonder Tower Foundations to solve the riddle. Scan the Gotham City Times sandwich board in Wonder Avenue to solve the riddle. Find the wanted poster of Solomon Grundy at the end of the road running just outside the Chamber of the Demon and scan it to solve the riddle. Scan the two statues of Ra's al Ghul in the Chamber of the Demon to solve the riddle. To do this right, you must scan both statues at the same time.
 * Riddle 1: "Crime is a global issue, Batman. You'll never stop it."
 * Riddle 2: "Read all about it! Is this a sign of the Times?"
 * Riddle 3: "Wanted: Dead...and alive?!"
 * Riddle 4: "Do these demonic twins pose a threat?"
 * Riddle 5: “Where can you get a wonderful view of the past?

At the Observation Deck in Wonder Tower there will be an old drawing of Gotham City. Scan this and the riddle will be solved.

Whilst climbing Wonder Tower, glide off into the distance until Batman turns himself around. As soon as he does this, turn on Detective Mode and scan the question mark that you see. This will solve the riddle.
 * Riddle 6: "This question can only be answered from an unusual perspective. Can you get yourself there?"

Park Row
East of ACE Chemicals is a gargoyle sprayed with Riddler question marks. Climb onto here then drop down to the concealed area below for the trophy. East of Trophy 1 on the roof near a wall with five Riddler question marks on the wall. Use the Batarang to destroy the right-hand Riddler mark by waiting until the light is on. On the building north of ACE Chemicals, behind a ventilation system. Use the remote controlled Batarang to destroy the Riddler mark. On the roof of the building with Park Row written over it on the map. The timed panel is a few steps to the west. On top of the most northwestern building near Solomon Wayne Courthouse. Use detective vision to locate all four Riddler marks. You have 4 seconds to destroy all four marks, so use the explosive gel on the 3 hidden marks, then use the Batarang on the final Riddler mark closest to the trophy’s locked cage. There are three pressure pads in the area. Starting from the northern rooftop overlooking the Riddler trophy, glide on to the southern wall and pressure pad. Immediately after pressing the pad, glide over to the wall on the opposite side then finally onto the pad on the ground closest to the Riddler trophy. A pressure pad on the highest rooftop east of Solomon Wayne Courthouse opens a gate below. Activate it then glide down into the area, then use explosive gel to destroy the wooden panel beneath. Slightly southeast of Trophy 7. On top of the roof with a nearby Riddler mark on a chimney. Use the Batarang to activate it.
 * Trophy 1
 * Trophy 2
 * Trophy 3
 * Trophy 4
 * Trophy 5
 * Trophy 6
 * Trophy 7
 * Trophy 8

Amusement Mile
Behind a weak wall on the building with the rooftop courtyard. Simply punch through it to destroy the wall. In a narrow alleyway between the church and the Amusement Mile text on the map. There are six Riddler marks in two sets of three. Plant explosive gel on each of the marks on the bottom row, then grapple above the top row so each button is targetable. Activate the explosive gel then quickly press L2/LT and X/A to quickly throw batarangs and hit each of the three marks. If timed properly, the riddler cage below will open up. Starting from the top of the first building near the destroyed overpass, glide from the pressure pad down to the pad below. From there, look right and glide down to the third and final pad in the alleyway nearby. The Riddler cage is on a rooftop near the second pad. Beneath Trophy 3 is a chain fence. Drop down on to the nearby rooftop and use Freeze Grenades to create a platform at the end of the water. Land on there then activate electromagnet with the REC. On the roofs of the large building with a rooftop garden is a short chain cage. The Riddler trophy switches between positions, so time your slide underneath the cage to collect it as you slide past.
 * Trophy 1
 * Trophy 2
 * Trophy 3
 * Trophy 4
 * Trophy 5

Industrial District
Coming soon

Subway
Coming soon

The Bowery
Coming soon

Steel Mill
Coming Soon

Museum
Coming soon

Wonder City
Coming soon

Park Row
Coming soon

Amusement Mile
Coming soon

Industrial District
Coming soon

Subway
Coming soon

The Bowery
Coming soon

Steel Mill
Coming Soon

Museum
Coming soon

Wonder City
Coming soon

Physical Challenges

 * Physical Challenge #1: Glide continuously for over 150 meters (without using the Grapnel Boost upgrade)
 * Physical Challenge #2: Glide continuously for over 250 meters (Grapnel Boost upgrade permitted)
 * Physical Challenge #3: Perform a vertical dive for over 50 meters
 * Physical Challenge #4: Perform five consecutive line launches without touching the ground
 * Physical Challenge #5: Glide for 30 meters while maintaining a height of less than 5 meters above the water
 * Physical Challenge #6: Achieve a x20 combat combo
 * Physical Challenge #7: Use 3 Quickfire gadgets in one combat encounter
 * Physical Challenge #8: Achieve a x5 variation bonus in one combat encounter
 * Physical Challenge #9: Aerial Attack off a stunned enemy into another (3 required)
 * Physical Challenge #10: Use the Slide to trip an enemy (3 required)
 * Physical Challenge #11: Perform a Beat Down to finish an enemy (5 required)
 * Physical Challenge #12: Counter an enemy projectile (3 required)
 * Physical Challenge #13: Hit an explosive object with a Batarang before it is thrown
 * Physical Challenge #14: Take out 2 enemies at once with the Glide Boost Attack
 * Physical Challenge #15: Use a Combo Batarang in combat (10 required)
 * Physical Challenge #16: Perform a Batclaw Slam (5 required)
 * Physical Challenge #17: Use the Quickfire Remote Electrical Charge during a combo (5 Required)
 * Physical Challenge #18: Use the Quickfire Explosive Gel during a combo (5 required)
 * Physical Challenge #19: Use the Quickfire Freeze Blast during a combo (5 required)
 * Physical Challenge #20: Use the Smoke Pellet to disorientate enemies into attacking each other
 * Physical Challenge #21: Finish a fight with a Combo Batarang (3 required)
 * Physical Challenge #22: Use the Remote Electrical Charge to get an armed enemy to fire his weapon and surprise at least one other nearby enemy
 * Physical Challenge #23: Use the Remote Electrical Charge to force an enemy to hit another enemy (3 required)
 * Physical Challenge #24: Use the Remote Electrical Charge to blast one armored thug into any other thug
 * Physical Challenge #25: Use the Freeze Cluster Grenade to immobilize three or more henchmen at one time (Upgrade required)
 * Physical Challenge #26: Use the Freeze Blast to freeze an enemy then a Batarang to knock them down
 * Physical Challenge #27: Perform a Grapnel Boost Takedown
 * Physical Challenge #28: Use the Reverse Batarang to knock down an enemy
 * Physical Challenge #29: Kick an enemy while riding on the Line Launcher (3 required)
 * Physical Challenge #30: While riding on the Line Launcher towards an unaware enemy, use the Takedown attack to drop down and knock them out
 * Physical Challenge #31: Catch a Remote Batarang
 * Physical Challenge #32: Fly a fully boosted Remote Batarang into a thug and send him flying through the air
 * Physical Challenge #33: Use the Freeze Blast to freeze an armed enemy before taking him out
 * Physical Challenge #34: Use the Smoke Pellet to disorientate an armed enemy and follow up with a Takedown
 * Physical Challenge #35: Disarm an enemy using the Batclaw disarm (3 required)
 * Physical Challenge #36: Use the Disruptor to jam the gun of an armed enemy and then get him to try and fire
 * Physical Challenge #37: Use the Remote Electrical Charge to temporarily disable a backpack Jammer device
 * Physical Challenge #38: Take down an enemy using the Sonic Batarang
 * Physical Challenge #39: Perform an Inverted Takedown from a Vantage Point
 * Physical Challenge #40: Perform a Knockout Smash (5 required)

Park Row
Coming soon

Amusement Mile
Coming soon

Industrial District
Coming soon

Subway
Coming soon

The Bowery
Coming soon

Steel Mill
Coming Soon

Museum
Coming soon

Physical Challenges

 * Physical Challenge #1: Use Caltrops to stun an enemy (3 required)
 * Physical Challenge #2: Perform a Special Combo Whiplash and Special Combo Whip Trip in one combo flow
 * Physical Challenge #3: Complete one Claw Climb using at least 8 separate leaps without missing the timing for a single jump
 * Physical Challenge #4: Perform a Pounce attack (3 required)
 * Physical Challenge #5: Use the Quickfire Whip attack during combat (3 required)

Psychological Profile (by Dr. Young)
"As with many of the inmates here, Nygma has an abnormally high IQ but this is tempered by his intense narcissism and his obsessive-compulsive need to devise and disseminate his (surprisingly ingenious) riddles and puzzles. If there were a way to break his histrionic behavior and its underlying ego-maniacal causes, he could be cured. It is a puzzle only I am truly able of solving."

Additional Notes

"I cannot help but admire the complexity, and yet apparent simplicity, of the many conundrums and riddles Nygma regularly present me with in his treatment sessions. Often I find myself working through them in my (infrequent) free time.

His obsession with displaying his own intelligence is the central trigger of his many personality disorders."

He seems to be hiding some sort of secret artifacts on the asylum's grounds.

Tape One
Patient Interview #21, May 27
 * Dr. Penelope Young: Patient interview 21. Patient's name is Edward Nigma, also known as the Riddler. So, Edward, Warden Sharp tells me you've been leaving threatening riddles scrawled on the asylum walls, again.
 * Riddler: One would have to be severely paranoid to read threats into harmless riddles, Dr. Young. May I test you with one?
 * Dr. Penelope Young: Very well.
 * Riddler: What is it that walks on four legs, then two legs and finally three legs?
 * Dr. Penelope Young: A human being. As a baby it crawls on four legs, as an adult it walks on two and in later years it uses a cane.
 * Riddler: (giggling) Good try, but the answer to all three is a baby. True, it crawls on fours, but cut off its legs and it can wiggle on two limbs. Give it a crutch, it can hobble around on three. You see?
 * Dr. Penelope Young: That's horrible. How can you even joke about that?
 * Riddler: Easily, Doctor. It's not my baby.

Tape Two
Patient Interview #39, July 29
 * Dr. Penelope Young: Taped interview 39. Patient's name is Edward Nigma. At this point in time I have yet to decide if Mr. Nigma is a suitable candidate for the Titan process. I'd like to talk about your childhood.
 * Riddler: Miserable. Next?
 * Dr. Penelope Young: By all accounts that is where your fascination with riddles began. I believe discussing those years could explain your compulsive behavior.
 * Riddler: Very well... My father hated me. Always called me a moron.
 * Dr. Penelope Young: I see.
 * Riddler: I was determined to prove him wrong, so I entered a contest at school. A twenty dollar prize to the kid who could figure out an almost impossible logic problem. I won, of course.
 * Dr. Penelope Young: And that pleased your father?
 * Riddler: Hardly. He was convinced I had cheated. He kept yelling, "You must have cheated! Admit it, you moron! You cheated!" I swore I didn't and he hit me for lying.
 * Dr. Penelope Young: I'm sorry to hear that, Edward.
 * Riddler: Don't be. He was right.

Tape Three
Patient Interview #44, August 21
 * Dr. Penelope Young: Patient interview 44. This is yet another interview with Edward Nigma. I have yet to make up my mind whether he is a genius or just deluded. Whichever one he is, just beginning in his company is both irritating and exhausting.
 * Riddler: Hello, Miss Young. You look tired. Anything you need my help with?
 * Dr. Penelope Young: No thank you, Edward. I am here to help you. We all are.
 * Riddler: Forgive my arrogance, Doctor, but if you think I need your help, well, you're in the right place.
 * Dr. Penelope Young: Let's look at it a different way. Throughout your career, you have specialized in bizarre traps and convinced clues that, more often than not, result in the death of the unfortunate participants.
 * Riddler: And if the citizens of Gotham were smarter, my games would be merely an amusing diversion.
 * Dr. Penelope Young: Instead of deathtraps.
 * Riddler: You really should be thanking me. Weeding out the ignorant, the stupid, the useless. But don't worry, I'm sure you would survive. What a lovely desk, Doctor. Your family? Mother, perhaps.
 * Dr. Penelope Young: Put that down! Get out! Guards!

Tape Four
Patient Interview #55, October 4
 * Dr. Penelope Young: Let's discuss your obsession with Batman.
 * Riddler: Hardly an obsession, Miss Young. I simply feel an obligation to expose him.
 * Dr. Penelope Young: You know who he is?
 * Riddler: More important, I know what he is.
 * Dr. Penelope Young: What do you mean?
 * Riddler: It's obvious. The mask, the weapons, the scare tactics, he's a criminal. No different than Joker, Two-Face or myself.
 * Dr. Penelope Young: Most people consider him a hero.
 * Riddler: Most people are idiots. They can't see Batman for the villain he is. Riddle me this. How did he get his car and his gadgets?
 * Dr. Penelope Young: I don't...
 * Riddler: With money stolen from the criminals he "defeats". Why does Gordon turn a blind eye to his antics? Batman bribes him! The answers are right in front of your stupid, gawking face!
 * Dr. Penelope Young: Edward! Please, calm down...
 * Riddler: Wake up, Gotham! No sane, law-abiding man does those things! No one's that selfless! Batman is as vile as they come!
 * Dr. Penelope Young: Security! Security!

Tape Five
Patient Interview #76, January 16
 * Dr. Penelope Young: This is my final interview with Edward. I have gone as far as I can. I can no longer tolerate his mood swings and tantrums. I have more important work to be getting on with. He will be transferred to Dr. Whistler's care as of next week.
 * Riddler: Good morning, Doctor. How are you today?
 * Dr. Penelope Young: I'm fine, thank you, Edward. You're in a good mood.
 * Riddler: I'm always in rare spirits when I'm about to be released.
 * Dr. Penelope Young: Edward, you know you don't come up for parole for another three years.
 * Riddler: First thing I'll do is have dinner at that Italian place on 19th Street...
 * Dr. Penelope Young: Seriously, Edward...
 * Riddler: I only hope Joker hasn't completely trashed the city. Ah well, I'm sure I'll find out soon enough.
 * Dr. Penelope Young: Wait, have you been in contact with The Joker? He escaped Arkham weeks ago!
 * Riddler: And yet, one hears things...
 * Dr. Penelope Young: What things? What have you heard?
 * Riddler: Oh, something about a surprise party for Batman, I forget the rest. You know Joker, yak, yak, yak.
 * Dr. Penelope Young: Edward, if you know anything, you've got to tell me! Lives could be at stake! What did Joker say?
 * Riddler: You forget, Doctor. I'm the one who asks the riddles.

Tape One

 * Hugo Strange: (on phone) Do not fret, Mr. Mayor. Everything is under control… I promise you.
 * Quincy Sharp: It’s not that I don’t trust you, Hugo. It’s just… it’s just the headaches. The pain. They come all the time now.
 * Hugo Strange: Continue to take the medication.
 * Quincy Sharp: But-
 * Hugo Strange: It is late, Mr. Mayor. You are tired. You need your sleep.
 * Quincy Sharp: Of course. I need my sleep.
 * Hugo Strange: You will hang up now.
 * Quincy Sharp: I will hang up now. (ends phone call)
 * Hugo Strange: Imbecile!
 * The Riddler: I couldn’t have put it better myself!
 * Hugo Strange: What?! How dare you enter my office!
 * The Riddler: Oh, I’m not in your office… and please don’t insult me by attempting to trace this broadcast. You will fail.
 * Hugo Strange: I take it I am talking to Mr. Edward Nigma.
 * The Riddler: Do you know of any other inmate in your twisted little penitentiary who is a genius enough to arrange this little chat?
 * Hugo Strange: Narcissism – a compulsive desire to prove his intellect – and a predilection for riddles.
 * The Riddler: You’ve read my file!
 * Hugo Strange: Of course.
 * The Riddler: Good. Then let’s get started. How do you attempt to understand what is going on in Arkham City when all of the answers are strange?

Tape Two

 * The Riddler: Good evening, Hugo. I believe it is time for our one-on-one.
 * Hugo Strange: No. It is time for you to stop this and give up. My TYGER guards will find you and when that happens, I will perform the procedure on you myself.
 * The Riddler: Procedure? Oh, you mean what you did to all those poor fools back at the Asylum. To be honest, I think you did them all a favor.
 * Hugo Strange: How do you...?
 * The Riddler: How do I know that you requested access to all the most... forgettable patients and proceeded to melt their brains with the help of that confused milliner? Or did you mean, how do I know that you have been providing the ex-warden with your own special medication, no doubt intended to render his synapses more malleable to your suggestions. Or maybe you are currently wondering if I know about the secret panel in your closet. How it slides back to reveal what you want most. How you sit, wearing that suit, crying into your hands as you question whether you are really worthy.
 * Hugo Strange: What do you want, Mister Nigma?
 * The Riddler: Oh, that's easy. I want exactly what you want.
 * Hugo Strange: And what's that?
 * The Riddler: Batman. Dead. Humiliated. But dead.

Tape Three

 * The Riddler: Knock, knock, Professor. Guess who?
 * Hugo Strange: I grow tired of these insipid games, Mr. Nigma. If you wish to speak to me, my guards will escort you safely to my tower.
 * The Riddler: Please, Hugo. If you're going to set a trap, at least pretend to try harder than that.
 * Hugo Strange: No traps, Edward. I simply wish to grant you safe passage through Arkham City. I think the time has come for us to meet at equals.
 * The Riddler: You, Strange? My equal? I am the man whose cunning will soon have Batman lying at my feet, bloodied and broken.
 * Hugo Strange: Really?
 * The Riddler: Then I will pull off his mask and look into his dull, dying eyes. In that last instant he will know that I have finally beaten him and I will finally know who he really is.
 * Hugo Strange: My apologies, Edward. I see now that we are nowhere near equals.
 * The Riddler: Finally.
 * Hugo Strange: You see, like me, you are obsessed with the Batman, but unlike me, you don't know who he really is. Do you?
 * The Riddler: What?

Tape Four

 * The Riddler: I know you're lying, Strange. There is no way that you could have figured it out. It's some kind of trick. It must be.


 * Hugo Strange: Oh, I used no tricks, no childish puzzles. I simply created a psychological profile of the man most likely to be the Batman, and then matched it against the most logical candidate. I was right, of course.


 * The Riddler: Well, who is he?


 * Hugo Strange: Ah, but that would spoil the game for you, wouldn't it?


 * The Riddler: You must tell me! I implore you Strange! I--


 * Hugo Strange: Really, Edward. If I could figure it out, it must be child's play for you.


 * The Riddler: But I... I...


 * Hugo Strange: Interesting. Tell me, Edward. How is the Riddler like a blank dictionary? You're both at a loss for words.

Tape One

 * Scarecrow: I thought it best we meet alone Edward.
 * Riddler: I know what you're doing Crane, talking to me away from Cobblepot and the others. You're appealing to my ego.
 * Scarecrow: Is it working?
 * Riddler: HA! I don't HAVE an ego, Crane. I'm far too brilliant. Especially for the likes of you.
 * Scarecrow: Of course, Edward. But nonetheless, we have a mutual foe.
 * Riddler: A foe I could vanquish with but one of my cerebral lobes intact! Yet here you are, proposing an alliance that would let you bask in my luminescent glory.
 * Scarecrow: But what if you failed, Edward? What if, by some underhand means, of course, the Batman were to humiliate you again?
 * Riddler: Absurd!
 * Scarecrow: I know, Edward, it's a frightening thought. How many failures can even your enviable reputation withstand? But if the Bat were distracted, tugged in far too many directions by too many threats, why, then you would be assured of the upper hand.
 * Riddler: I have... I- I- don't know how to respond to your ridiculous insinuations. So all I will say is this. Tell me which day you plan to attack Gotham and maybe, just maybe, if you're lucky, I will coincidentally put my entirely separate and superior masterplan into effect.
 * Scarecrow: How kind, Edward. I will keep my fingers crossed.

Tape Two
(Phone ringing)
 * Catwoman: Who is this?
 * Riddler: Ah, Ms. Kyle. You have the privilege of conversing with me, The Riddler. Gotham's premier super-villain and intellectual colossus.
 * Catwoman: And I'm honored, Eddie. Really. Bye!
 * Riddler: Wait! Wait! I'll get to the point.
 * Riddler: I find myself in need of your unique skillset. Your "street smarts" as your intellectually challenged kind adorably calls them.
 * Catwoman: I'm going to adorably hang up on you, Eddie...
 * Riddler: No! No! Listen, I need... something acquired. Something valuable.
 * Catwoman: Sorry, Eddie, it's just that I have all these clients who aren't insecure little power-mad man children.
 * Riddler: Fine. You may name your fee.
 * Catwoman: ...Information.
 * Riddler: Ah, the most valuable commodity of all.
 * Catwoman: Scarecrow's planning something. Involving Batman.
 * Riddler: I might be furnished with the absurd particulars of his ridiculous scheme.
 * Catwoman: I'll get you what you want, Eddie, if you tell me what I need to know.

Tape Three

 * Riddler: Right. OK. Riddlerbot memory formatted, adaptive AI algorithms uploaded. Joints oiled. Now give my creation life!
 * Riddler: Damn it! Useless hunk of dead metal! Do you want to become a semi-automated theme park mannequin?! Because that's the fate in store for you!
 * Catwoman: Problem, Eddie?
 * Riddler: Ah. Ms. Kyle. You're here.
 * Catwoman: And you already have company. Almost, anyway. Did you lose your friend's batteries.
 * Riddler: Why, yo... es. In a manner of speaking, anyway. I'm depleted.
 * Catwoman: And always compensating for it too.
 * Riddler: Oh Catwoman. Your wit never fails to... occur. Now, I need you to procure a set of rechargeable energy cells for me. Stagg Enterprises' nimbus tech will work. I'm sure Wayne Enterprises has an equivalent.
 * Catwoman: Got it. It's been a pleasure as always, Eddie. Except for the talking to you part.
 * Riddler: Wait! At least get a glimpse at what it is you're supposed to be stealing!
 * Riddler: There. In the robot's chest cavity. Go on. It won't bite.
 * Catwoman: Eddie, there's noth- WHAT THE HELL? Eddie, make this thing let me go!
 * Riddler: BATTERIES? You think I needed batteries?! Oh, Ms. Kyle, you underestimated my bespoke power supply innovations. And that was your downfall.
 * Catwoman: What is this, Eddie?
 * Riddler: This is - you are - bait. You see, I've identified what I believe to [be] some sort of... attachment between you and Batman. The base nature of this attachment quite frankly disgusts me. But it will bring him here.
 * Catwoman: You'll regret this.
 * Riddler: The World's Greatest Detective does not frighten me.
 * Catwoman: He's not the reason you'll regret it.

Batman: Arkham Origins

 * "Well, well. If it isn't the King Thug himself."
 * "You're cheating aren't you? You're getting help from someone. But who... Who's smart enough to outsmart me?!"
 * "Your response is as predictable as it is banal. Goodbye."
 * "You're quickly approaching the point of no return. I'd turn back if I were you!"
 * "What's wrong with you? It's not like I'm backing the bad guys here. Well - not usually."
 * "Alright. We've had our fun. But this endeavor's grown tiresome."
 * "I thought you had a city to save? So what are you doing, wasting time with me?"
 * "I'm disappointed Batman. You do realize there are other ways to overcome obstacles beyond smashing them?"
 * "Crawling around in vents like a common rat. How... expected."
 * "I bet steering that thing requires a whole lot of concentration - OOPS! SORRY ABOUT THAT!"
 * "You know, if you'd have asked nicely, I would have opened the door for you."
 * "You must be feeling pretty good about yourself, Batman. I mean, you took down all the towers! Which means you've foiled my plan... Except, oh wait, I already have all the data I need. And as soon as I'm done uploading it - so will everyone in Gotham."

Game Over Lines

 * "Brains always triumph over brawn, my friend. Always!"
 * "And here I thought I'd finally met my intellectual equal. So much for that."

Taunts

 * "Does your head hurt, Batman? Understandable. You're no match for me."
 * "Can we just agree I'm cleverer than you?"
 * "It's the E. Nigma show."
 * "I am Edward Nigma. The world's greatest detective."
 * "Can you defeat a mind such as mine?"
 * "I pity you trying to defeat my challenges."
 * "Riddle me this!"
 * "There's no shame in cheating. If you admit you cannot solve my challenges."
 * "Are you having trouble solving my challenges? Do you admit I'm smarter than a bat?"
 * "Do you need my help, Batman? Do you give up?"
 * "No challenge is too great for me."
 * "Are you up to the challenge?"
 * "Do you like riddles, Batman?"
 * "Fiddle diddle diddle. Answer my riddle."
 * "Hi diddle diddle. Time for a riddle."
 * "Hi diddle diddle."
 * "Puzzling, isn't it?"

Finding Riddler maps

 * "So, you have given in and taken my map. I hope it proves useful."
 * "A map will always help those who are stuck."
 * "My map will help you, Batman."
 * "You do know how to read a map, don't you Detective?"

Solving riddles

 * "Don't get too full of yourself, Dark Knight. It only gets harder from here."
 * "You are performing just below my predicted expectations. At this rate, you'll never beat me."
 * "I'd have solved all the puzzles by now."
 * "That one could have been solved by a monkey. But good job, nonetheless."
 * "Easy! Isn't it? Well, we'll see. We'll see."
 * "Bah. Another one of the easy ones. Don't feel too proud, Batman."
 * "Another one? Can it be? No. There's no way. You can't find them all. It's impossible."
 * "I'm losing patience. You are cheating. You must be."
 * "You are beginning to impress me, Batman. You may still reach a level just below my genius one day."
 * "What? You found that one too? Preposterous."
 * "I'm impressed. That was one of the more taxing ones."
 * "I don't believe it! How did you work that one out?"
 * "That one was impossible to solve! How did you do it?"

Finding Riddler Trophies

 * "Of course you found that one easily. You were supposed to."
 * "That was one of the easy ones!"
 * "A challenge completed. Can you do more?"
 * "So what was it that gave it away? The big, green, glowing question-mark?"
 * "Can you hear that, Detective? It's the sound of me clapping at your success? Oh, you can't? That's because an idiot would have found that trophy."
 * "Easy. A blind man would have stumbled over that one."
 * "Oh, you found that one. Sorry. It wasn't much of a challenge. I was running out of time."
 * "That trophy was a test. Well done. You passed the elementary grade."
 * "Ha. The only way I could have made that one easier to find is if I strapped it to the hood of that ludicrously ostentatious vehicle of yours."
 * "You are earning my respect, Dark Knight Detective. I'll let you help me find my socks if you keep this up."
 * "Thank the Lord. I thought you'd have found that one hours ago."
 * "At last. I thought you'd never find it."
 * "So, you found it at last. What have you been doing with your time?"
 * "I thought I made them easy to find. I guess not."
 * "There is no way you are doing this alone. Who's helping you?"
 * "That one is hidden so well it was almost invisible."
 * "Oh, you are definitely cheating."
 * "How are you doing this?"
 * "How did you find that one?"

Progressing on Challenges

 * "So the Great Detective has solved a mere ten percent of my challenges. Are you ready to give up yet?" (After solving 24/10% of the puzzles)
 * "What do you call someone who has failed to solve three quarters of my riddles? A Batman?" (After solving 60/25% of the puzzles)
 * "What do you call the detective who is only half-way to the end? Loser?" (After solving 120/50% of the puzzles)
 * "What? You found 75 percent of my challenges? This can't be right." (After solving 180/75% of the puzzles)
 * "What? You're nearly done? Are you cheating? Looking them up on the internet? Tell me!" (After solving 216/90% of the puzzles)

Final Audio Recording
After Batman has solved the final riddle, the Riddler will panic. The following recording is released as the Riddler is thwarted.
 * The Riddler: "What?" (The Riddler realizes that Batman has just solved his final riddle.) "You did it? You must have cheated. There is no way you could have beaten me. Well, you asked for it, Batman. My final challenge for the whole of Gotham is just seconds away... What?" (Sirens begin to sound in the distance.) "Sirens! The police! You cheated, Batman. You couldn't have outsmarted me!" (Several policemen pound on the door)
 * Police Officer: "Police! Open up."
 * The Riddler: "No!"
 * Police Officer: "I said open the door, now!"
 * The Riddler: "No!" (There is a splintering of wood as the police knock down the door.)
 * Police Officer: "Down on the ground! Down on the ground!" (Several more policemen burst into the Riddler's hideout.)
 * The Riddler: "No! Tell me! How did you work out where I was? Do you hear me? I, Edward Nigma, will... Argghhh." (The Riddler struggles against the police officers and one strikes him with a nightstick as the transmission goes dead.)

Game Over Lines

 * "This is hardly a surprise. I always knew I was better than you."
 * "Well, well. So the shaved monkey has failed. How utterly, utterly expected."
 * "What's wrong? Has your primitive brain given up and accepted that I, the Riddler, am better than you?"
 * "Riddle me this. What lies on the ground, is full of holes, and gives off a slight burning smell?"
 * "Question: What do you call someone who prevented a guard from turning into minced-meat? Answer: Not you, Batman!"
 * "You picked wrong, Dark Knight!"

Game Over Lines

 * "I did it! I actually did it ! I mean, of course I did. Good. As expected."
 * "I don't think you'll be solving this one."
 * "Riddle me this: What's dead? You!"
 * "Your death was inevitable, I'm afraid. A statistical certainty."
 * "My apologies, Catwoman. But you see, I had a point to prove."
 * "Now to be fair, Catwoman, in cat years you had a very good run."

Arkham City Viral Campaign
On July 23, 2011, Movieviral.com posted a message on their Twitter page saying "Arkham City viral has started at Comic-Con. Code I f n W C O g 2 D 5k is for a website. crack it! #sdcc".

Once the code was cracked, it was discovered that it was a url to a secret YouTube video, which was an audio recording of Quincy Sharp, Hugo Strange, and The Riddler. Sharp calls Strange and tells him that he is being bothered by headaches and pain. Strange tells him not to worry, to take his medications and hypnotically suggests that Sharp get some sleep. After hanging up, Strange's communications are hacked by the Riddler. After exchanging some banter, Riddler challenges Strange to a game by asking him "How do you attempt to understand what's going on in Arkham City, when all of the answers are STRANGE". The audio file then cuts off.

In the description of the video, there was a message left behind saying "(1)Can (5)you (26)defeat (20)a (_)mind (21)such (7)as (5)mine(7)(5)(7)?" - #EN

Once the code was cracked, another audio file was discovered. This time, the audio file was a patient interview between Penguin and Strange. At first, Penguin was reluctant to talk, saying that he owns Arkham City, but Strange retorts by saying that he allows Penguin certain freedoms. He then asks Penguin why he feels the need to own anything, believing it to be a mechanism to compensate for some childhood inadequicy. He also asks him about being friends with the Waynes. Penguin says he was friends with the Waynes "until someone did the world a favor and blew the brains out of little Wayne's self-rightous parents." He goes on to say that after the Waynes' death, he was laughing for weeks, and that it still brings a smile to his face. Strange asks him if he really thinks that's okay, and Penguin laughs and calls it hysterical. He says that the Waynes destroyed his family, and that what happened to them couldn't have happened to nicer people. Then the audio tape cuts off.

In the description for the video, a message was left that said "How do you protect yourself when its raining bullets" -#EN. This is a riddle within Arkham City, inside the Penguin's "Iceberg Lounge". The official Arkham City News Twitter retweeted someone else's tweet saying "When its raining bullets, you protect yourself with an umbrella." #EN, which is the answer to the riddle. As of September 4, 2011, the clues in the descriptions for both videos have been removed.

Then, on August 24, 2011, the official Xbox Twitter and Facebook profile pictures were changed to images of the Riddler. Later, the Xbox Twitter tweeted a message saying

"Has your primitive brain given up and accepted that I, the Riddler, am better than you? - #EN"

Later, another message was posted saying "S(1M), sh(_BE)ll w(e) (UCe)egin(9U)? - #EN".

Once the clue was decoded, it led to another interview session, this time with Strange and Joker. After taunting/threatening a guard, Strange comes in and orders Joker to stop. After introducing himself, Strange asks for Joker's name. Joker taunts Strange, claiming to be Two-Face, Catwoman, and Batman. Strange offers Joker an opportunity to make a deal, saying that he is fully aware of Joker's condition, and that he does not have much time left. However, Strange says he can make his final days more comfortable. Joker asks what Strange wants in return, and Strange says that that he wants to study Joker, and figure out why he is the way he is. Joker responds by saying he doesn't have much time left, and that Strange needs more than just "psycho mumbo-jumbo" to get to the bottom of what's wrong with that. Strange says that he has much more than that and asks him if the two have a deal. The audio tape cuts off before Joker gives his reply.

There was no clue left in the description of the video. Whether or not that means there are any other secret audio tapes has yet to be confirmed.

Trivia

 * Batman dubs him "Enigma" because Nashton said he was "a great, big mystery [Batman] will never solve".
 * The name itself also alluded to his daughter in one of the comics.
 * Enigma is also the name of the character in the Spanish translations, among others.
 * Ironically, this may have been what inspired Edward to change his name to Edward Nigma - E. Nigma
 * Enigma's secret room cannot be accessed until all the Extortion Data has been collected and all the Relay Stations have been destroyed.
 * The Riddler is voiced by Wally Wingert, who portrays his voice in a similar manner as John Glover's Riddler.
 * In Batman: Assault on Arkham, Riddler is voiced by Matthew Gray Gubler in place of Wally Wingert, as the latter had scheduling conflicts. Coincidentally, Gubler also played the character Supervisory Special Agent Spencer Reid, Ph.D. from the crime drama series Criminal Minds, who similar to the Riddler was someone with a high IQ and often uses his brain for his work, and even being a (former) law enforcement officer (in Reid's case, being a Supervisory Special Agent for the FBI). The main difference, however, is that Riddler used his gifts for crime, while Reid used his gifts to stop crime.
 * Riddler, along with the Penguin, looked into Dr. Young's notes, and subsequently placed a mark on the following people: Zsasz, Clayface, Scarecrow, The Penguin, Mad Hatter, Tweedledee and Tweedledum, Great White Shark and Quincy Sharp.
 * At one point in the game, The Riddler nearly breaks the 4th Wall, claiming you are using the internet to locate all of the clues. The only way the 4th wall breaking could be possible is if you really did access the internet.
 * In early magazine articles for the game, images of Riddler's cell were shown to have question marks in red rather than green, and an inscription on the wall written in French which did not appear in the game. Translated, this inscription reads "I loved, I suffered, Now I hate." Original Cell
 * Many cells in the Penitentiary have small question marks drawn on their walls, indicating that Riddler has been moved multiple times.
 * Riddler's final interview foreshadows the events of the game.
 * If you walk in front of him when he is being led around the room after being apprehended, he will start to panic, believing that he is about to be blown up since he doesn't know Batman disabled the device.
 * In Batman: Arkham City, his capturing and torturing of victims is similar to the actions of the villain Jigsaw in the Saw horror franchise.
 * Alfred mentions in the game that The Riddler has been out to get Batman ever since Batman tipped off the cops which led to Riddler's arrest in Batman: Arkham Asylum.
 * The Riddler is adamant that he is not insane, as it would mean he suffers from a mental illness, which he claims he doesn't have.
 * With each challenge it shows that the Riddler thought that Batman would have less of a chance of success. This clearly shown where the first victim you saved instantly spouts the radio frequency he gave him, where everyone else takes longer and longer to remember, showing he didn't force them to remember them with each victim. This is especially shown where the last victim wasn't even given a code.
 * If you fail to answer a Riddle right you have to wait 30 seconds to answer it again.
 * The Riddler cameos in Injustice: Gods Among Us in one of the stage transitions in Arkham Asylum. When the player attacks their opponent near the edge of the Mess Hall arena, they will be knocked into a room where Killer Croc, the Penguin, Two-Face, and the Riddler all attack the fighter before they move on to the Cell Block arena.
 * It is implied via dialogue at various points of Arkham Knight that The Riddler is an atheist, or at the very least doesn't believe in the supernatural.
 * During one of his broadcasts to Batman after Scarecrow is defeated, Riddler, when telling Batman what Miagani Island was named after, comments the tribe were morons for worshipping bats.
 * While locked up in the maximum security cell, should Deacon Blackfire be present, Riddler will infer that Blackfire's belief in God is "superstitious nonsense."
 * When telling Batman to challenge him after finding the last riddle, Riddler will mention that he intends to deconstruct him "like a flimsy philosophical position," referring to the philosophical school of deconstructionism popularized by Jacques Derrida.
 * In Catwoman's Revenge, there are several times where Aaron Cash cuts in and speaks in a normal tone in contrast to the Riddler's more echoed, staticy, and electronic tone despite it being a transmission. This implies the trademark echo and static in his voice was the result of modifying his channel for his own voice.