- "My mom told me I could be anything I wanted! Anything!"
Upon his escape from Arkham Asylum, Clayface joins forces with the Riddler, Two-Face, Poison Ivy, and Mr. Freeze in robbing Gotham Bullion Fortress.
Clayface assists the Riddler by going with him to Gotham Bank to steal the Key the Gold Vault. The gain access to the Bank Safe and successfully take the key. However, as they are leaving, Clayface spots a pile of gold bars, and immediately becomes hysterically obsessed with them, rolling in them and making a house out of them. The Riddler becomes impatient and abandons Clayface, who is still dementedly laughing in the pile of gold. However, before long Batman and Robin arrive at the at the safe and fight Clayface.
Clayface is defeated, but still helps Riddler (despite the latter abandoning Clayface) by tripping up Batman in a chase to prevent him from capturing Riddler. He is then sent back to Arkham Asylum.
Clayface is last seen in his cell at Arkham Asylum sitting at a table with clay pottery on top of it.
While he doesn't appear in the main story, Clayface can be found in Open-World Gotham at the Gotham Bank. Here he can be fought and unlocked as a playable character.
- Clayface has the ability of super-strength
- Clayface can perform a double-jump
- Clayface can hurl chunks of clay at opponents for a long-range attack.
Treasure-hunter Matt Hagen was transformed into the monstrous Clayface by a pool of radioactive protoplasm. He possesses super-strength and can transform his claylike body into any form.