Games you HAVE finished

[Nux]

Dreamcast:
Sonic Adventure
Sonic Adventure 2
Tokyo Extreme Racer
Speed Devils
Rippin' Riders

Gameboy Color:
Pokemon Blue
Pokemon Red
Pokemon Gold
Pokemon Silver
Pokemon Crystal

Gameboy Advance:
Pokemon Fire Red
Fire Emblem
Golden Sun
Yu-Gi-Oh! The Eternal Duelist Soul
Yu-Gi-Oh! Worldwide Edition: Stairway to the Destined Duel

Nintendo 64:
The Legend of Zelda: Ocarina of Time

Gamecube:
Need For Speed Underground 2
Super Smash Bros. Melee
The Legend of Zelda: Windwaker
Sonic Adventure DX: Director's Cut
Sonic Adventure 2 Battle
Spider-Man
Spider-Man2
Spyhunter
Karaoke Revolution Party

PlayStation:
Monster Rancher 2

PlaySation 2:
Final Fantasy X
SRS: Street Racing Syndicate
Star Wars: Battlefront
Guitar Hero
Guitar Hero II
The Matrix: Path of Neo

XBOX:
Halo
Halo 2
Fusion Frenzy

Wii:
Red Steel

PC:
Need For Speed Underground
Command & Conquer Red Alert
Command & Conquer Red Alert 2
Command & Conquer Red Alert 2 Yuri's Revenge
Command & Conquer Generals
Neverwinter Nights 2

That's all I can think of right now, I'll be sure to add if I remember something or beat a game. =)