See also:
Best VGM 249 - http://www.youtube.com/watch?v=AxVhRs8QC1U
Best VGM 609 - http://www.youtube.com/watch?v=cRyIPt01AVM
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 64
Banjo-Kazooie
Bubblegloop Swamp