For the game and its soundtrack, see Undertale and Undertale Soundtrack.
Aren't you excited? Aren't you happy? You're going to be free.
Monsters talking to the protagonist through New Home

Undertale is the 71st track in the Undertale Soundtrack. It plays while the protagonist travels throughout New Home and learns the backstory of Asgore, Toriel, Asriel, and the first human. It is a song harmonizing the melodies of Once Upon a Time and Memory/His Theme.


  • In the game files, this song is split into two parts: "mus_endarea_parta" and "mus_endarea_partb." The beginning file loops while the protagonist is on the top floor of the house, and the second plays once when the protagonist enters the basement.
  • The sound files play at 0.85x speed in-game, matching the speed found in the original soundtrack.
  • This is the longest track in the Undertale Soundtrack, although its individual parts are shorter than Reunited.
  • The original version of "Undertale" had a bit more somber feel and came with an entirely different guitar accompaniment. According to Toby, by hearing "Redline Day," he was inspired to rework the song and write a new guitar accompaniment, which would then become the basis for "Memory" (and, by extent, "His Theme").[1]
  • If a part of "Undertale" is slowed down by 666%, it sounds exactly like The Choice.


  1. Undertale Tumblr

Undertale Soundtrack
1 - 10 Once Upon a Time • Start Menu • Your Best Friend • Fallen Down • Ruins
Uwa!! So Temperate♫ • Anticipation • Unnecessary Tension • Enemy Approaching • Ghost Fight
11 - 20 Determination • Home • Home (Music Box) • Heartache • sans.
Nyeh Heh Heh! • Snowy • Uwa!! So Holiday♫ • Dogbass • Mysterious Place
21 - 30 Dogsong • Snowdin Town • Shop • Bonetrousle • Dating Start!
Dating Tense! • Dating Fight! • Premonition • Danger Mystery • Undyne
31 - 40 Waterfall • Run! • Quiet Water • Memory
Bird That Carries You Over A Disproportionately Small Gap • Dummy!
Pathetic House • Spooktune • Spookwave • Ghouliday
41 - 50 Chill • Thundersnail • Temmie Village • Tem Shop • NGAHHH!!
Spear of Justice • Ooo • Alphys • It's Showtime! • Metal Crusher
51 - 60 Another Medium • Uwa!! So HEATS!!♫ • Stronger Monsters • Hotel
Can You Really Call This A Hotel, I Didn't Receive A Mint On My Pillow Or Anything
Confession • Live Report • Death Report • Spider Dance • Wrong Enemy !?
61 - 70 Oh! One True Love • Oh! Dungeon • It's Raining Somewhere Else • CORE Approach • CORE
Last Episode! • Oh My... • Death by Glamour • For The Fans • Long Elevator
71 - 80 Undertale • Song That Might Play When You Fight Sans • The Choice • Small Shock • Barrier
Bergentrückung • ASGORE • You Idiot • Your Best Nightmare • Finale
81 - 90 An Ending • She's Playing Piano • Here We Are • Amalgam • Fallen Down (Reprise)
Don't Give Up • Hopes and Dreams • Burn in Despair! • SAVE the World • His Theme
91 - 100 Final Power • Reunited • Menu (Full) • Respite • Bring It In, Guys! • Last Goodbye
But the Earth Refused to Die • Battle Against a True Hero • Power of "NEO" • MEGALOVANIA
101 Good Night

Start a Discussion Discussions about Undertale (Soundtrack)

  • Most underrated part of Undertale in your opinion?

    143 messages
    • naming the fallen human weird things via file editing Asriel: "You're not actually Asriel, right?" "You're ...
    • Undertrash2004 wrote: napstablook. just napstablook no contest
  • Part A and B combined

    8 messages
    • UM161003165 wrote:Have anyone ever heard this song with part A and B combined? it sounds really great imo. Play part A until up to about 8 seco...
    • I tried that by playing two windows with a youtube extension of this song together. One at 2:47, the other one at cca 0:08. It sounds interesti...