Oh, and the King K. Rool final boss music might be an example of one of the WORST final boss themes in a game. That shit is weeeeeak.
False Triumph: http://youtu.be/4GBaIOKu37U Yo, that first part, if you zipped it up with real synths you could turn that into some huge house/pop jam. But then the way it flips at the end? It only took 30 seconds to totally rip your heart out thinking you beat the game, except...
Stickerbrush Symphony: http://www.youtube.com/watch?v=J67nkzoJ_2M Like somebody else already mentioned, this is just ILL. It's not just good for video game music, it's sick period. So many different movements to it, keeps you glued all the way through.
Flight of the Zinger: http://www.youtube.com/watch?v=YLcWH1Z9VeQ This was perfect music for the wasp hive levels because it kept you on edge the whole time, always expecting to run into a stinger at any moment.
Klomp's Romp: http://www.youtube.com/watch?v=PwyipDW-t4Q I've always found it really impressive how Wise was able to work the sound effects of a creaky pirate ship necessary to make the level feel believable into the music itself.