Bad Ass NES music.

Almost everything you need right here

VGMusic - 30,702 Game Music MIDI files

Also check out OverClocked ReMix: Video Game Music Community for remixes of all your favorites

Crapload on this guys youtube as well with a stereo remix added WiiGuys 8BitStereo

I think it was for super NES but the shadowrun game had a pretty cool sound track.

Bruh Ninja Gaiden was $$$

This is the gameboy but so good

Nailed it in the op. Double Dragon theme so good and I would sometimes as a kid just sit at the title screen for Legend of Zelda just to listen to the music.

My contribution:

Nintendo Entertainment System.

/END THREAD

I absolutely loved F-Zero on the SNES, but as that was already posted: Top Gear 2, still one of my favourite racing games.