"Heartache" is the 14th track in the Undertale Soundtrack. It plays during the fight against Toriel.
- According to an interview with Toby Fox, this was one of the six songs originally composed for other projects. The other five were Fallen Down, Nyeh Heh Heh!, Bonetrousle, Another Medium, and MEGALOVANIA.
- Heartache, Nyeh Heh Heh!, and Bonetrousle were initially made for another RPG idea that never came to fruition.
- "ASGORE" quotes Heartache in ASGORE's B section (0:34-1:50)
- Toriel left Asgore, leaving him heartbroken, so it is appropriate that a small section of Heartache is included in Asgore's theme.
- The song name itself is most likely referring to the heartache that Toriel feels while fighting the protagonist, since she cares deeply for them.
- 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|