Moby helps out by fetching things for Tim and asking questions about the topic they are discussing. As a robot, he can do things that people are unable to do, such as changing his hand into a freeze-ray, sending himself back in time, throwing garbage into a black hole in space, removing his head, and using lasers. Some of the movies, such as the Earth, Radar and Milky Way videos, imply that Moby is of an extraterrestrial origin.