Batman: Arkham Asylum - Mac Square off against some of Gotham's most notorious lunatics, including Harley Quinn, Killer Croc and Poison Ivy. Deploy an arsenal of upgradable gadgets, from a remote-control Batarang to a grappling gun and explosive gel. Use Detective Mode to identify important objects and reveal enemies' weak spots. Deliver brutal combos with the innovative Free Flow combat system. Move in the shadows and strike fear amongst your enemies.