Favorite games, in absolutely no particular order - Just how they started popping in my head.

Super Mario World 2: Yoshi's Island
Super Metroid
Metroid
Metroid Zero Mission
Metroid Fusion
Metroid II: Return of Samus
Metroid Prime
Metroid Prime 3: Corruption
Castlevania: Symphony of the Night
Castlevania: Aria of Sorrow
Castlevania: Portrait of Ruin
Super Castlevania IV
Megaman X
Megaman 2 (NES)
Battletoads
The Legend of Zelda Ocarina of Time
The Legend of Zelda A Link to the Past
The Legend of Zelda Link's Awakening
The Legend of Zelda Twilight Princess
The Legend of Zelda Majora's Mask
The Legend of Zelda Wind Waker
The Legend of Zelda
Super Mario Bros. 3
Super Mario World
Super Mario 64
Super Mario Galaxy
MetalStorm
Crystalis
Metal Slug series
Alien Hominid
Tetris NES (Tengen)
The New Tetris (N64)
Tetris DS
Mario Kart 64
Mario Kart DS
Super Smash Bros.
Super Smash Bros. Melee
Super Smash Bros. Brawl
Final Fantasy VI
Chrono Trigger
Secret of Mana
Seiken Densetsu III
Terranigma
Vagrant Story
Ikaruga
Gunstar Heroes
Gunstar Super Heroes
Sin and Punishment
Psychonauts
Maniac Mansion
Day of the Tentacle
Full Throttle
Grim Fandango
Ico
Shadow of the Colossus
Shadowman (N64)
StarFox
StarFox 64
Demon's Crest
Killer7
No More Heroes

I'm also a DDR fan, but don't play it that much anymore (i'm out of shape).
and there are probably more that I can't think of right now...