Red Dead Redemption (I've enjoyed every second of playing it)
Dead Space (I only play this in broad daylight with the blinds completely open and Spongebob playing on a TV in another room)
Shantae (It doesn't feel like a GBC game, it feels like a modern game in an 8-bit style - it's that advanced...
Currently,
Super Mario Sunshine (I have like 20 Shine Sprites so far)
Shadow of the Colossus (5 Colossi down)
inFamous (I don't know exactly how far I am into the game but I'm being a good guy)
Super Metroid (I feel like I'm probably close to the end of the game but I honestly have no clue)
Started playing Pokemon Red on my Gameboy Advance SP. I forgot I had this game, lol. I've only ever played its remakes, FireRed and LeafGreen, so this should be an interesting experience, going back to the series' roots and all.
Actually, I'm trying to speedrun the second stage in the Sonic LW 3ds Demo. Parkour comes in handy when you spin dash all the way across a giant gap to the other side ;)
Pokemon X, Oracle of Seasons, Oracle of Ages, Metroid Prime, A Link to the Past, Fire Emblem: Awakening...
I should probably get around to finishing at least one of these soon...