Batman: Arkham City gets Harley Quinn's Revenge Trailer Warner Bros. has announced that Harley Quinn's Revenge, the final DLC pack for Batman: Arkham City will be available from 29 May from PSN and XBLA for PS3 and Xbox 360 respectively for £6.49 or 800 MS points. Set to add more than two hours of fresh single-player gameplay to the Rocksteady Studios" second Batman title, the extra content sends players back into Arkham City to face their final challenge as they interchange between playing as both Batman and Robin. Newcomers to last year's Dark Knight adventure will be able to pick up Batman: Arkham City Game of the Year Edition on the 7 September, which includes all previous downloadable content (Catwoman Pack, Nightwing Bundle Pack, Robin Bundle Pack, Challenge Map Pack and Arkham City Skins Pack) plus Harley Quinn's Revenge Pack.