The game follows the story of Bart Simpson as he battles against an alien invasion on his home planet. The evil alien leader, Professor Frink, has returned and seeks to take over Earth with an army of mutant creatures. Bart must use his wits and whatever tools he can find to stop him.
The gameplay is a mix of action and adventure elements as Bart navigates through various levels on the alien planet. Players control Bart as he runs, jumps, and fights against enemies using his trusty slingshot. The game features various power-ups and items that can be collected to aid in Bart's quest.
The Simpsons: Bart vs. Space Mutants was released for the Sega Game Gear console in 1992 and provides a fun and lighthearted take on the popular cartoon series. The game is suitable for players of all ages who are looking for a nostalgic and entertaining experience.