Super Mario's Crystal Island Adventure 3.1 is one of those SNES romhacks that feels like stumbling onto a lost official sequel. The levels are packed with weird little secrets—like hidden warp pipes tucked behind scenery that look totally normal at first glance. I spent way too long trying to figure out if that one suspicious-looking bush was hiding anything (it was).

The physics are just slightly tweaked from the original Super Mario World, so it doesn’t feel jarring, but there’s enough new stuff—custom power-ups, some brutal late-game platforming—to keep you on your toes. The music’s a mix of remixed classics and original tracks that somehow don’t feel out of place. If you’ve burned through the original SMW a dozen times, this’ll give you that “wait, what’s around this corner?” feeling again.