He was originally an ordinary earthworm whose life changed when an "ultra-high-tech-indestructible-super-space-cyber-suit" fell to Earth nearby. He crawled inside the suit, and in doing so, was granted newfound powers, primarily the strength and dexterity of a human. The suit uses various guns, which Jim battles the scum of the universe with. The suit can also pull the worm out of it and use it as a whip and a grappling hook. Jim can be a bit naive and rarely thinks before rushing into battle, but on occasions can be very cunning.