Well, in Gotham City Impostors we'll get to find out. Based on the animated short we've provided for your viewing pleasure below, it looks quite insane. Gotham City Impostors is the new downloadable sort-of companion game to Batman: Arkham City and is being developed by Monolith. It's set for release sometime early next year, and features two teams, one side all dress as Batman and the other all dressed as the Joker, trying to take each other out in the most brutal way possible.