Rocksteady is aiming for the feel of titles like BioShock and Chronicles of Riddick, with the iconic asylum providing an atmosphere equally claustrophobic and imprisoning. The introduction we're shown starts off as a movie, as Batman drives Joker through the streets of Gotham. Batman's delivering him directly to Arkham, and he's gibbering about bombs under the city. His voice is familiar - it's veteran video-game bad guy Mark Hamill, who also voiced The Joker in The Animated Series. It's a longer, narrower Joker than TAS, though - Rocksteady has been working with DC's in-house Wildstorm studio to give the game characters a fresh feel.