The portions of the game where you can control Batman's psychotic nemesis are not part of the main game but are part of the Challenge Maps.
Batman: Arkham Asylum comes out June 23, 2009.
Batman Arkham Asylum: play as Joker in PS3 version only
24.04.2009
In the version of the anticipated next-gen Batman video game, , players will be able to control the Dark Knight's sworn enemy The Joker. Even though the game is being released on multiple platforms, including and , you'll only be able to play as The Joker on the PS3 version. This news first appeared on a billboard advertisement in .