- Location is Arkham City, in the middle of an empty, almost destroyed street full of flipped over cars, flaming magazines and newspapers, several convicts, a giant bonfire of dead corpses, and huge chunks of buildings.
- Characters cant use powers that they had in the comics and not video-games
- For characters who have two different video-game franchises or more, the version that is shown is the version in the battle (example: Batman Begins: The Video-Game, Arkham Asylum)
- No Prep-Time
- If battling Superman no Kryptonite weapons or anything like that count, same thing goes with Wolverine and Maramusi Blade (This rule does not apply for those who have Kryptonite or the Maramusi Blade IN them, such as Metallo or Daken)
- Have fun!