I've looked far and wide on YouTube, but this is one of the few themes that aren't uploaded yet. Why not, YouTube? This theme is awesome!
Not to be confused with the final boss theme that has been uploaded. (And that I haven't heard yet. But I know it's not the same theme.)
EDIT: To clarify, this IS the actual final boss theme. But the one that has been uploaded on YouTube at the time I made this video is a different song entirely. One that seems to have been cut from the game.
