- The artbook mentions "Ghost Fight" is inspired by the battle music from the RPG OFF, and was composed before Undertale existed. It was only inserted into the game when Napstablook became a real character.
- The Monty Python's Flying Circus sample that is heard in Earthbound's "Your Name, Please" track can also be heard in this track. (0:33-0:50).
- The song is played at a lower pitch in the Fangamer Demo.
|Undertale Demo Soundtrack|
|1 - 10|| Once Upon a Time • Menu • Your Best Friend • Fallen Down • Ruins|
Anticipation • Unnecessary Tension • Enemy Approaching • Ghost Fight • Determination
|11 - 16||Home • Heartache • End • Nyeh Heh Heh! • Home (Music Box) • Empty House|