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Needed: History is incomplete: Team-Up & Guess Who.

Arkham Asylum is a mental institution for the criminally insane of Gotham City. Most, if not all, were put away by Batman.


Scooby-Doo! Team-Up

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Scooby-Doo! & Batman: The Brave and the Bold

Batman and Mystery Inc. went to Arkham Asylum to interview the Riddler about his connections to Professor Archilles Milo and the failed teleportation experiments. After speaking with him, Crimson Cloak appeared and attacked Batman before shutting down the asylum's power. The loss of power allowed inmates to bypass their electronically controlled cell doors, resulting in a massive jailbreak. Batman and Mystery Inc. subdued several criminals and fled to the outside. Though Batman sealed the entrance to the asylum, a large number of criminals were able to escape. Batman and Mystery Inc. then investigated the grounds of the Arkham Cemetery for clues.

Later that night after stopping Crimson Cloak, Batman called Arkham Asylum to check on Riddler. A prison guard quickly determined that a decoy Riddler had been locked up and the real one was still on the loose.

The Batman & Scooby-Doo Mysteries

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Scooby-Doo and Guess Who?

Season one

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Appearances in other media

Arkham is based off the asylum in mainstream DC Comics. The Arkham in the film, had previously appeared in the Batman: The Brave and the Bold episodes Mayhem of the Music Meister! and Joker: The Vile and the Villainous.