Entry #46 (Winter) Battletoads "Ice Cavern"

 This track comes from the infamously difficult 1991 NES title Battletoads (this game also ended up on the Genesis and several other platforms, but this is specifically the NES version.) A note about this video- it loops a number of times.
Developer: Rare
Composer: David Wise

Entry #23 (Tranquil Tracks) Donkey Kong Country 2 "Forest Interlude"

 This track comes from the 1995 SNES platformer Donkey Kong Country 2: Diddy Kong's Quest. It is yet another New-Age-sounding track that is chock full of great naturalistic sound effects. A beautiful piece.
Developer: Rare
Composer: David Wise