Rocksteady's Batman: Arkham Asylum was a pleasant surprise when it was released in 2009: a video game that, in contrast to the lackluster history of superhero games, was actually good. Arkham Asylum wasn't unique - clearly drawing its combination of rooftop navigation, stealth, and combat from games such as Assassin's Creed - but it deftly applied that formula to the experience of being Batman and inhabiting his world of Gotham City. Batman: Arkham City expands and refines the first game, crafting a new experience that, while never particularly innovative, remains consistently entertaining and a person's best opportunity to feel like the Dark Knight.