See also:
Best VGM 829 - http://www.youtube.com/watch?v=v02ZFogqSS8
A collection of my favorite videogame music. Note that most of them are from games I played so I might miss some great ones from games I never played.
Nintendo DS
Pokémon Diamond / Pearl / Platinum (2007)
Galactic Boss Cyrus
Hitomi Sato & Junichi Masuda