Ever stumble across one of those wild Mario ROM hacks that makes you go, "Wait, this exists?" Super Mario Extreme BETA Demo is exactly that—a chaotic, fast-paced remix of classic Mario with way more enemies, tighter jumps, and some seriously weird level designs. You'll recognize the SNES sprites, but everything's cranked up to 11: pits are wider, platforms move faster, and those hammer bros? They show up in packs now.

First few minutes in, you're either grinning at the sheer madness or resetting after getting swarmed by a dozen goombas. No middle ground. The physics feel just slightly off from vanilla Mario, so you'll mistime a jump or two before adjusting. Not sure if it's intentional or a beta quirk, but it adds to the challenge. Definitely one for players who think the originals are too forgiving.

If you're into obscure Mario mods, this one's a trip—just don't expect polish.