Just imagine getting to the castle in Mario Bros or beating up bad guys in Double Dragon to this music!
Click on the video itself to find other links to 8-bit metal songs including Reign in Blood and Hangar 18.
UPDATE: Found Cowboys From Hell too and it sounded too badass to pass up.
Pantera- Cowboys From Hell
Metallica- Master of Puppets (8-bit style)
Thanks once again to the great metalsucks.net for discovering this funny shit.