"Temmie Village (Beta Mix) - Undertale" is a high quality rip of "Temmie Village" from the game Undertale.
Jokes
This is rip is a rendition of the song "Stand By Me" by Ben E. King using the vocal instruments from the advertised track.
At 2:03, the overdriven guitar instrument from "Megalovania" begins to play a solo, which also briefly incorporates some of the opening notes to "Megalovania". Then the guitar begins to play the melody along with the vocal instruments.