This is another one of my favorite tracks, I love riding up the waterfall in that anti-gravity section. I also remember liking the music quite a bit. (although I can't remember what exactly it sounds like at the moment)
^ Yeah I love those Shy Guys everywhere. I also noticed when I was playing this track earlier that the Shy Guys make noises to the beat of the music, which is a really cool detail. It's not even just part of the music, since you only hear it when you're next to the Shy Guys.