Play Mario's Fun World Demo Levels 2 Online

Mario's Fun World Demo Levels 2 is an unofficial release for the Super Nintendo Entertainment System, a collection of experimental and unfinished stages that feel like a peek into a scrapped project. It lacks any official developer or publisher credits, placing it among the many fan-made or prototype-level experiences that circulated among collectors and enthusiasts during the SNES era.

You control Mario through a series of disjointed platforming challenges where the primary goal is simply to reach the end of each unstable stage. The gameplay involves navigating platforms that can vanish without warning, avoiding enemies that sometimes spawn directly in your path, and dealing with frequent collision errors that let you pass through solid walls. The pacing is erratic, and the difficulty stems less from designed challenges and more from unpredictable glitches. Playing it feels like wrestling with a broken machine, where every jump carries the risk of the game itself falling apart.