Play Super Mario World Extra Demo 1 Online

Ever played Super Mario World so much you could run through it blindfolded? This weird little demo feels like someone dug into the game’s code while Nintendo wasn’t looking and started tinkering. Same colorful sprites, same Yoshi-riding chaos—but suddenly there’s a level where the platforms move in ways they definitely shouldn’t, or a power-up that makes Mario bounce like a rubber ball. It’s jarring at first, then weirdly charming.

Not all the changes work (some jumps feel just slightly off), but that’s part of the fun—it’s like playing a familiar song on a slightly out-of-tune piano. The music’s still there, but the notes wobble in ways that make you laugh. Found this on an old ROM site years ago and still fire it up when I want Mario to feel new again.