2.Resident Evil 4 - Finally a decent adult game for gamecube only. Finally Resident Evil is perfected. Finally a game to rival zelda. Terrifying fun.
3.Super mario sunshine - nintendo's mascot mario has a new water squirting backpack and a new nemesis but theres still classic gameplay.
4.Metroid Prime - At last samus is in 3-d and appearing in one of gamecubes most finely detailed games.
5.Metroid Prime 2 echos - Samus returns in a world split into dark and light and she must save the luminoth. A great plot and great gameplay.
6.Timesplitters 2 - Crazy multiplayer shooting with weird characters. Travel back in time and defeat the timesplitters in 1 player or co-op. More fun than you could believe.
7.Mario kart double dash!! - More karting fun with nintendos famous characters + you now have 2 people in a kart!!
8. Timesplitters Future Perfect - Mostly the same as TS2 with revamped story and even more characters.
9.F-zero GX - Fast futuristic cars in a game that still runs smoothly. Tons of vehicles and a decent selection of tracks. Story modes not bad either.