Batman: Arkham City Review - GameSpot

Batman: Arkham City's irresistible world, joyous movement, rewarding combat, and varied side quests make it an exceptional adventure game.

Batman: Arkham City Gameplay (PC, PS3, Xbox 360, Wii)

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GameSpot Reviews - Batman: Arkham City Video Review (PS3, Xbox 360)

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Batman: Arkham City - Wikipedia