Man, this is a really dumb list. Not just because of the game selection, but the fact that I have to visit 25 pages.
25. Tony Hawk's American Sk8land
24. Planet Puzzle League
23. Space Invaders Extreme
22. Picross DS
21. Puzzle Quest
20. N+
19. Final Fantasy Tactics A2
18. Kirby Canvas Curse
17. Sonic Rush
16. Elite Beat Agents
15. Guitar Hero On Tour
14. Ninja Gaiden Dragon Sword
13. Nintendogs
12. Animal Crossing: Wild World
11. Advance Wars: Dual Strike
10. Grand Theft Auto: Chinatown Wars
9. Pokemon Diamond/Pearl/Platinum
8. Meteos
7. Metroid Prime Hunters
6. Tetris DS
5. The World Ends With You
4. Castlevania: Dawn of Sorrow
3. The Legend of Zelda: Phantom Hourglass
2. Mario Kart DS
1. New Super Mario Bros.