The Joker even mocked this incompetence by giving Batman a revolving door as a gift. Arkham Asylum is meant to rehabilitate the villains who are institutionalized there, but they can't do that if ...

Harley Quinn's time at Arkham Asylum was inevitable, regardless of the Joker's influence – at least as far as the New 52 version of the character was concerned, as she proved by far to be the ...