Bowser is a large dragon-esque creature that is the main antagonist of the Mario franchise. Bowser is hostile towards many of the protagonists within the game, especially Peach. Mario and Luigi will attack him, as he is the antagonist of the game. Like a regular dragon, Bowser can breathe fire, but does not possess the ability to fly. He is only available in Scribblenauts Unlimited (Wii U version)
In Scribblenauts Unlimited, Bowser's depiction resembles the Bowser disguise of the Koopa Bros. from Paper Mario.