Powerhouse is originally a SID tune by Jeroen Tel and Thomas Mogensen, released under the name “Maniacs of Noise”. They made it for a demo on the Commodore 64. Make sure to also have a listen at the song like it was played by the good old Commodore 64 back in the 90s!
This song has been submitted to Remix64. The score there was 69% (last checked on November 5th, 2017).