Batman: Arkham Asylum, released on Mac last year, pushed superhero games in directions that nobody really expected but everyone wanted (and almost immediately began to copy). Its rhythmic fights were immediately satisfying and endlessly fun. Its wonderfully creepy, secret-filled world was a joy to explore. And its atmospheric detective puzzles and stealth challenges explored a side of Batman that seldom came through in games. So how does Batman: Arkham City top that formula? By giving us much, much more of it.