Rocksteady changed gaming with Arkham City. The game is not just a technical marvel but also has an innovative ending.

He keeps his secrets concealed, but just barely — he cannot contain himself, even as he’s punching cops, escaping in cars or, in some cases, facing death itself. In Batman: Arkham City, Joker dies ...

Batman: Arkham Asylum's final boss fight may not be all that special on its own merit, but its role in Rocksteady's trilogy is paramount.