I am one of the biggest video game music fans there is. I have a ton of stuff I could say about it, but I'll just list some of my favorites.
The Legend of Zelda: A Link to the Past - Overworld, Hyrule Castle, Dark World, Ending
The Legend of Zelda: Spirit Tracks - Overworld
The Legend of Zelda: The Wind Waker - Dragon Roost Island
Chrono Cross - Time's Scar, At the Shore of Dreams ~ Another World
Chrono Trigger - Frog's Theme, Wind Scene, Peaceful Days, To Far Away Times
Mega Man 2 - Flash Man, Metal Man, Air Man, Dr. Wily Stage 1
Mega Man 3 - Snake Man, Dr. Wily Stage 2
Final Fantasy V - Battle with Gilgamesh
Final Fantasy VI - Terra, Devil's Lab, Wild West, Shadow
Final Fantasy VII - Main Theme, Cid's Theme, Aerith's Theme, Valley of the Fallen Star, Judgement Day
Final Fantasy IX - You're Not Alone, Rose of May, Dark Messenger
EarthBound - Winters, Hi Hi Hi (Saturn Valley)
Secret of Mana - Angel's Fear
Dr. Mario - Chill
Donkey Kong Country - DK Island Swing, Aquatic Ambiance
Donkey Kong Country 2 - Forest Interlude
Kirby Super Star - Trees in the Depths of the Earth
Sonic the Hedgehog 2 - Chemical Plant Zone
Super Mario World 2 - Flower Garden
Super Mario RPG - Forest Maze
Etrian Odyssey II - Cherry Tree Bridge
Skies of Arcadia - Kingdom of Ixa'taka
That's enough for now.