Hate to spoil your fun...

Though it was a very interesting remix, i have to inform you that the song you used is not infact from Mario RPG, but from Final Fantasy IV; to be more specific, it's Fight 1. Just thought you should know, if no one's already told you. ^^;

Different Tone. Hm.

You've got a very different tone to the song than I'm used to hearing on the Portal. The main buzz/saw instrument started to get a bit annoying at times because it overpowered the music so vastly, and the intro could have been a bit longer.

That aside, nice job. I'm giving you a, 8/10 rating, but 5/5 vote. I wanna get you out of that low-end rut on this song's score. :)