Batman: Arkham Asylum Trailer Shows Playable Joker

What a rotter that Joker is. His Batman: Arkham Asylum challenge room levels exclusive to the PlayStation 3 apparently feature not japes and jolliness, but murder and mayhem.

BOOM video 2009

Batman: Arkham Asylum arrives August 25 on PC, Xbox 360 and PlayStation 3. The Joker challenge levels will be available free on the PlayStation Network from launch.