I would go with nothing less than Kefka's Tower.

There are also Unreal Tournament midis, but there are only 2 of them, and they are only on 1 site. I have them. Maybe I'll upload them soon.

In the meantime, would you think that the Z3 Dungeon Midi would work? Somehow I kinda got that vibe from them. (Whatever a "vibe" is. )