My top 10:
1. Super Mario Sunshine
2. Pokemon Emerald/Ruby/Sapphire
3. Super Paper Mario
4. Super Smash Bros. Melee
5. Super Mario World
6. New Super Mario Bros. DS
7. Kirby's Airride
8. The Legend of Zelda: Phantom Hourglass
9. Custom Robo
10. Mario Kart: Double Dash!!
Counting only the ones Nintendo made, not the ones on a Nintendo system.
1. Super Mario Sunshine
2. Pokemon Emerald/Ruby/Sapphire
3. Super Paper Mario
4. Super Smash Bros. Melee
5. Super Mario World
6. New Super Mario Bros. DS
7. Kirby's Airride
8. The Legend of Zelda: Phantom Hourglass
9. Custom Robo
10. Mario Kart: Double Dash!!
Counting only the ones Nintendo made, not the ones on a Nintendo system.