The Doppelganger seems to be the main villain character in Super Scribblenauts. It seems that the reason the main character Maxwell is collecting the Starites is not only to restore the twelve constellations but also so that he can use them as weapons against the Doppelganger who is abducting everyone and everything with his UFO. Towards the end of the level he crashes onto either an alien planet or the moon (it has to be one of these as you can see the Earth in space) and dies when his UFO explodes upon contact with the ground.