Warner Bros. have released a new trailer for the upcoming Harley Quinnâ€™s Revenge downloadable content pack for Batman: Arkham City. The DLC adds more than two hours of singleplayer gameplay to the very well received Arkham City, in a set of missions that Warner Bros. are describing as the "final challenge" to be put in front of gamers.
Harley Quinnâ€™s Revenge will be available on PlayStation 3 and Xbox 360 from May 30th (the announcement did not include any information on a PC release).
Additionally, Warner Bros. have announced the Batman: Arkham City Game of the Year Edition for release in September. This updated version of last year's hit will include all of the DLC released for the game so far, including the Harley Quinnâ€™s Revenge pack.