I finally got around to fixing it up some more, and spent about a week making various tweaks and changes to bring it closer to perfection. And here it is now! It's "Galaxy Fantasy" from Mega Man 9 (digital download for various systems) mashed up with "Pirate Island" from Adventures in the Magic Kingdom (NES/Famicom). I can't nail down the style, but I'd call it "drum n pop" or "synth n bass" or something like that. Eh, who cares. Enjoy!
(Don't be misled by the title, this is *not* a Metroid remix... although I do plan on making a Metroid remix at some point, so keep an ear out!)