A sequel to the wildly successful Arkham Asylum, Arkham Asylum 2 will have players revisiting the darkest reaches of Gotham City as none other than Batman. With the Joker being nursed back to health by a crazed (is there any other kind?) Harley Quinn, there's no telling the kind of insanity and high-powered enemies that Batman will find himself up against this time around. All we know for sure is that the chaos might not be limited to Arkham Asylum this time around.