Did you copy and paste or overdub near the end? Around about 1:23, the guitar is off tempo BAD, by at least one whole beat. You correct it in the very end, but that little 15 second snip really threw me and it's a shame.
The whole of the song is a vast improvement on the original track from the game, for sure. I love the guitar tone and the attack of the snare drum. This feels much more fitting of a character like Bass and an intense boss battle.