program's pageMake chiptunes from MIDIs instantly!
GXSCC is a wonderful program that emulates a Famicom (NES) or SCC sound chip in order to play MIDIs. Since you can find MIDIs of basically any song in existence with five minutes and Google, it can effectively make any MIDI file into chiptunes (aka "8-bit music"). However, the only official link is on somebody's Japanese Geocities site last updated in 2001. We've created an installer and a zip file with settings for modern computers, which you can download below:
Download GXSCC (portable zip file)