Jim was an ordinary earthworm who did very earthworm-like things, such as flee from crows and eat dirt. One day, during an outer space fight, a suit drops to Earth and falls around Jim. It mutates him into a large and intelligent (at least by earthworm standards) superhero. Play as Jim in this Sega Genesis classic. When Jim learns of the evil plans of Psy-Crow and Queen Slug-for-a-Butt, he decides to rescue Princess What's-Her-Name. Run, gun, swing on hooks by your head and launch cows at the interesting characters you meet along the way, such as Major Mucus, Chuck and Fifi, Evil the Cat, and Bob the Killer Goldfish.