I just finsihed playing Ratchet and Clank: Going Commando. All I have to say is. Holy Shit. That game is simply amazing. I mean the puzzle, weapons, and challenge mode. One of the best games I've ever played.

Chrono Trigger: Unquestionably the best RPG ever made.

Final Fantasy VI: Only second to Chrono Trigger

Final Fantasy IX: A short return to the glorious past of Final Fantasy, before it became forever lost in it's modern 3D incarnations.

OoT: Duh.

Kingdom Hearts: Most original RPG of the last generation.

DQVIII: Best RPG of the last generation.

All Metroid games: Defined the sci-fi adventure genre.

Beyond Good and Evil: Amazing and unique adventure. My second favorite game last generation.

Super Smash Bros. Melee: My favorite game last generation.

Phoenix Wright: Ace Attorney: Why this game (series) is amazing is too much to write.   

The Legend of Zelda: Ocarina of Time
It had outstanding graphics and even though I played this game recently on Collector's Edition, I still thought the graphics were good. It had a great story and one of the best endings ever. It had a ton of weapons and huge, scary bosses that were a fun to destroy. It had great music, great cut scenes, great everything.

Super Mario 64
Just pure fun. You can do whatever you want whenever you want. It had great secrets, tons of moves, and much more. This game is the definition of fun.

Super Mario Bros. 3
I loved that there are so many powerups and secrets. This is the ultimate 2-D experience

Paper Mario: The Thousand-Year Door
I loved this game. It had a great battle system and awesome story, what more could you ask for?

Mario Kart: Double Dash!!
I don't know why so many people hate this game, I thought it was outstanding.