These custom Mario 64 music tracks from YouTube user TheGrinz might never make it past the Rock Band Network's copyright violation checks, but they're still impressive as hell.

Kotakuite Nick pointed me towards these videos, created using Harmonix's tools for porting songs to the Rock Band Network, and Koji Kondo's Mario 64 music really seems to work well in the format. Watching the drum line in the Bowser theme had my leg aching though, so in a way I'm glad that the Rock Band Network has copyright filters. Otherwise I'd just end up doing something stupid to my leg, and I like my leg.