This mashup was Max's idea but I made it because he doesn't really like mashups and I didn't want such a great idea to go to waste. He makes cool stuff, you should check out his channel!
https://t.co/Vw6GL0SNgr

This is fan content for the game Undertale, you should check it out. It's really cool.

The songs are 
I'm Blue - Eiffel 65
Bonetrousle - Undertale