Earthworm Jim , a 2D side-scrolling platformer with action elements, is a thrilling game that follows the adventures of a worm named Jim . In outer space, a crow is chasing another worm, while Psy-Crow pursues a renegade ship carrying an ultra-high-tech-indestructible-super-space-cyber-suit. The suit's captain has stolen it from Queen Slug-for-a-Butt, who orders Psy-Crow to retrieve it, as it can make her more beautiful than Princess-What's-Her-Name. The suit falls to Planet Earth, where Jim finds himself in the neck ring of the suit and undergoes a light-speed evolution.
Earthworm Jim is played as Jim , a worm wearing a spacesuit. The player controls Jim as he navigates through levels, shooting enemies with his gun or using his body to overcome obstacles. The suit has various features, such as whipping at enemies, grappling hooks for swinging, and spinning like a rotor to hover briefly. While the majority of the game consists of standard platforming levels with bosses, some levels introduce additional challenges, like escorting computer-controlled characters or completing objectives.