LEGO Batman 3: Beyond Gotham, according to a New York Comic-Con panel for the game. Ironically, the man who calls himself a "clueless gamer" will also act as a sort of guide for players, showing them around a game he may not really know much about himself.
Warner Bros. and Traveller's Tales also introduced several other characters and alternate costumes, including Solar Suit Superman, Darkest Knight, Man-Bat and, from Batman: The Animated Series, the Condiment King. But a guy shooting ketchup and mustard at people can't compare to playable character The Green Loontern, which is what happens when Duck Dodgers (played by Daffy Duck) puts on a Green Lantern outfit.
And you thought it was kinda weird when Kevin Smith showed up to help save the world.
[Image: WB Interactive]