No particular order here.
Super Castlevania IV (Beginning/Treasury Room)
Donkey Kong Country 2 (Stickerbrush Symphony/Kaptain K. Rool)
Mega Man X (Launch Octopus/Central Highway)
Mega Man 3 (Spark Man/Shadow Man)
Mega Man X2 (Wheel Gator/Counter Hunter Stage 1)
The Legend of Zelda: Majora's Mask (Giants' Theme/Clock Town [3rd Day])
The Legend of Zelda: Twilight Princess (Stallord/Diababa [2nd Half])
Metal Slug 5 (Final Attack/Fierce Battle)
Shadow the Hedgehog (Digital Circuit/Cosmic Fall)
Kirby Super Star (Run, Kirby, Run/Dedede's Theme)
I've never played DKC2, Majora's Mask or the any of the Mega Man games on this list, and Metal Slug 5 and Shadow the Hedgehog are awful in every other regard, but I've listened the living rabbitshit out of their soundtracks.
