Original by Toby Fox.

This was rendered using my SN76489 emulator that I wrote a couple of days ago. The tune was arranged in DefleMask and exported to the VGM-format in order to parse the song data and play it back in the emulator.

SN76489 is a pretty limited sound chip, or a "digital complex sound generator" as they put it in the datasheet, but it's quite satisfying when you manage to squeeze something that sounds decent out of it.

Undertale - Run! (Master System)

I program games and do arrangements of music I like on old hardware.

I mainly use DefleMask or CyberTracker to arrange music.

a little bit of everything  including  Christmas  music 

Undertale - Run! (Master System)

tEFFx