There are so many games that don't have soundtracks that I wish did. They are mainly Nintendo, since they don't release osts anymore. Oh, where do I even start?
1. Super Smash Bros. Brawl (Wii)
2. Wii Channels, with all Nintendo 3DS BGM (Wii, obviously!)
3. Wario Land: Shake It! (Wii)
4. Super Smash Bros. Melee (GCN)
5. Personal Trainer: Cooking (DS)
6. Motto Eigozuke and Eigoduke (DS, not released in US)
7. DS Bimoji Training (DS, not released in US)
8. Art Style: Pictobits (DSiWare)
9. Wii Fit (Wii)
10. Face Pilot: Fly with your Nintendo DSi Camera (DSiWare)
11. Wii Sports (Wii)
12. Wii Sports Resort (Wii)
13. DDR:Mario Mix (GCN)
14. Game & Watch Gallery 4 (GBA)
15. Mario Party 8 (Wii)
16. Super Mario All-stars (SNES)
17. Tetris & Dr. Mario (SNES)
18. Tetris Attack/ Panel de Pon (SNES)
19. Steel Diver (3DS)
20. PS3 Photo Gallery & PlayMemories (PS3)
21. Trash Panic (PS3)
22. Playstation Home (PS3, who said it has to be all Japanese games?)
23. Playstation Vita BGM (PSV)
24. Mario Kart DS (DS)
25. Bakugan
efenders of the Core (PS3, based on the anime series)
26. Yu-gi-oh 5D's Wheelie Breakers (Wii, based on the anime)
27. Adventure Island the Beginning (WiiWare)
28. Wario Land 4 (GBA)
29. Mario vs. Donkey Kong (GBA)
30. dress (PS3, Japan only)
31. NES Open Tournament Golf (NES)
32. Mario Sports Mix (Wii)
33. Mario Paint (SNES)
34. Mario Artist: Talent Studio ( Nintendo 64DD, Japan only)
35. BS-X Bios (Super Famicom, not released in US)
36. Retro Game Challenge (DS)
37. Nintendo Puzzle Collection (GCN, not released in US)
38. Minna no Sukkiri (PSP)
39. Minna de Spelunker (PS3)
40. Pokemon Stadium 1 & 2 (N64)
41. Super Mario Land 2 (GB)
42. Pokemon Trading Card Game (GB)
43. Trip World (GB)
44. Batman (NES)
45. Thruspace (WiiWare)
46. Mickey Mania the timeless adventures of mickey mouse (SNES, genesis, sega cd, ps1)
47. Walt Disney World Quest magical racing tour (GBC by the same people who did gex)
48. Gex enter the gecko (N64)
49. Tetrisphere (N64)
That's all I can think of off hand, if there were osts of all the games on here it would be a dream come true!