Earthworm Jim is a platformer game developed for the Super Nintendo Entertainment System, featuring a unique storyline. The game follows Jim, a worm who evolves into a superhero after a high-tech suit falls on him. Jim must navigate through various levels while battling enemies, including the villainous Psy-Crow and Queen Slug-for-a-Butt, who seek the suit for their own nefarious purposes.
A crow is chasing a worm named Jim while in outer space Psy-Crow is chasing a renegade ship. The ship's captain has stolen an ultra-high-tech-indestructible-super-space-cyber-suit and Queen Slug-for-a-Butt has ordered Psy-Crow to get it, since it can make her more beautiful than Princess-What's-Her-Name. Psy-Crow blasts the captain and the suit falls to Planet Earth.
Back on earth Jim wonders if he is finally safe when an ultra-high-tech-indestructible-super-space-cyber-suit lands on him. Luckily Jim rests in the neck ring of the suit. Then the space particles begin interacting with Jim, causing a light-speed evolution. Jim soon realizes he is in control of the suit.
Jim overhears the Queen's plans for the suit and decides to meet this Princess...