If you were intending on playing with a SNES Mini, you'll have to use retroarch. And heads up, the demo doesn't work on the SNES Mini's native emulator canoe. Important to note: This Demo does not have any of the planned color pallet changes aside from the unripe turnip on the box art of SMB2, in addition to that, some of the sprites are already outdated as this was the first game I finished working on but I have since gone back to touch up some sprites, so keep that in mind. If you apply it to a regular SMAS rom the graphics will be messed up.

Super Mario Bros 2 demo patch is for Super Mario All-Stars + Super Mario World (USA) unheadered rom. I'd like to make more changes to Lost Levels as well but they're beyond my control for now. That in mind, there's still a chance things will change for the final game. I would like to darken the shade of brown outlining Mario and Luigi's skin, and give Luigi a more vibrant shade of green. Both are mostly representative of the final game. SMB1 and SMBTLL both can be patched to a standard Super Mario All Stars Rom.