This game is the biggest reason on why I put so much emphasis on listening to the soundtracks of games. The songs in this game are crazy in their quality, especially for being stuck on the SNES' sound limitations.
From Aquatic Ambience to Fear Factory, most songs and tracks in this game will always hit you just right to keep you so immersed in every level and segment in this game.

Plus the level design is actually reasonably challenging and always fun, the bonus games are always rewarding and never frustrating. Controlling Donkey and Diddy Kong along with the animal companions always feels nice, especially the fish companion.