An energetic, fast theme that could fit with a boss rush or a short final level.
MANGOM1LK update (14 June 2020) - Changed instruments for the bass and extra lead, slightly increased the tempo, and moved a couple channels around (so different sections get cut off by sound effects).
I further swapped around the channels because the SFX cutoff was very badly noticeable. I swapped #3 with #7 and #2 with #6, respectively. If you really want to get picky, you could move part of #7 back instead of the rests that are there, but it's not super noticeable either way. I also removed the old versions from this ZIP since they're accessible through the version history.
In-game nitpicks aside, this is a very nice update! The song overall sounds so much fuller.