Batman: Arkham Asylum is hoping to tap into that 70-year wealth of bad guy awesomeness in a big way when the game ships this August. See, in this game, the Joker escaped only to get captured on purpose and set off a plan that puts him in control of Arkham. What's he do with that power? Well, he locks Batman in and sets loose the likes of Killer Croc, Poison Ivy, and a whole bunch of other bad guys that Eidos and Rocksteady haven't announced yet.
IGN has a breakdown of every announced villain Batman's going to have to face in his night of hell, and they are kicking that off with a brand new trailer that's set to rock your socks with all sorts of hot footage.