Batallion Wars
Billy Hatcher
Conflict: Desert Storm (Gamecube version has full coop)
Cubivore
Eternal Darkness
Geist
P.N.03
Sin and Punishment: Star Successor
Boom Blox
Spinx and the cursed mummy
Vexx
Viewtiful Joe
Star Wars Rogue Leader
Wario World
Zack and wiki
Fatal Frame 4 (You'll need an english translation)
Chibi Robo
I-Ninja
And games you probably should have played already:
Luigi's Mansion
Animal Crossing gamecube <3
Metroid Prime Trilogy
Xenoblade chronicles
The Last Story
Pandora's Tower
Pikmin 1 + 2
Paper Mario Thousand Year Door <------------------- <------- <------
Super Paper Mario
No More Heroes
Mario Galaxy 1 + 2
Mario Power Tennis
Mario Sunshine
F-Zero GX