Your Best Nightmare - Undertale

"Your Best Nightmare - Undertale" is a high quality rip of "Your Best Nightmare" from Undertale.

Jokes
At 0:22, the rip turns into an arrangement of "Ground Theme" using samples of the instruments from the beginning of the advertised track.

At 0:51, the rip transitions from "Ground Theme" to an arrangement of "Dancing in My Head" by Eric Turner and Avicii using instruments and sound effects found in Undertale.

From 2:57 to 3:47, the arrangement of "Dancing in My Head" is mashed up with "Your Best Friend" also from Undertale.