The Super Mario Bros. 2 Overworld theme. I'm pretty sure this is the Super Smash Bros. Melee version, so it might sound a little different from how it did on the Famicom or NES, but it's close enough to the original that you pretty much can't tell unless you're directly comparing versions. If you wanted the 8-bit version, no remixing, no 10-hour extension, here you go.
Super Mario Bros. is owned by Nintendo. Koji Kondo made this music, not me.
