Leitmotifs

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A **leitmotif** is a musical "phrase" or melody, re-used in multiple songs to associate a tune with a person, event, or place.

The extensive use of leitmotifs in *Undertale*'s soundtrack and other sound files helps create a nostalgic mood for the game and often evokes emotional responses in players. Toby Fox has stated that the majority of *Undertale*'s soundtrack was composed using reiterations of free SoundFonts and synths.

Attempts have been made at documenting all of the leitmotifs used in the game; players frequently find new connections, and it may be impossible to list them all conclusively. Every single piece of data is open to interpretation and any change should be explained in this page's history description.

Timestamps found below are approximate to one second and are sourced from this playlist, which reflects the timing of the official soundtrack.

## Once Upon a Time

This leitmotif can be considered as the main theme of Undertale. It's the most common melody of the game, playing in seventeen tracks.

* Once Upon a Time
* Start Menu and Menu (Full) (the background tracks for the Start Menu build upon one another, with five intermediate tracks in between; the music played in the menu at the end of a True Pacifist playthrough is a slowed rendition of Start Menu)
* Home and Home (Music Box) 0:36-1:44
* Hotel 0:20-1:22
* Can You Really Call This A Hotel, I Didn't Receive A Mint On My Pillow Or Anything 0:14-0:57
* Undertale 0:37-5:58
* The Choice
* Fallen Down (Reprise) 1:18-2:30 syncopated to 3/4
* Hopes and Dreams 0:00-1:29, 1:52-2:14
* SAVE the World 0:00- 0:14, 0:35-1:46
* Final Power (Hopes and Dreams reversed)
* Reunited 0:43-3:56
* Bring It In, Guys! 3:47-4:05
* Last Goodbye 0:00-0:25, 0:45-2:15
* Good Night
* Undertale (Unused)
* Before the Story 0:29-1:28

## Flowey

Flowey has two leitmotifs relating to him.

This leitmotif occurs in seven songs, and one unused audio file.

* Your Best Friend
* Your Best Nightmare 0:54-1:26, 2:00-2:27, 3:00-3:27
* Finale 0:00-0:40, 0:57-1:52
* Hopes and Dreams 1:18-1:52
* SAVE the World 0:05-0:08, 0:15-0:18, 0:25-0:28, 0:36-0:39, 1:35-1:46
* Last Goodbye 0:29-0:32, 0:39-0:42
* mus\_toomuch (this plays after exhausting the random kill counter of an area)
* mus\_f\_finale\_1

### Your Best Nightmare

This leitmotif is used in four songs and one unused audio file.

* You Idiot
* Your Best Nightmare 0:00-0:16, 0:22-0:53, 1:27-1:54, 2:29-2:54, 3:28-4:00
* Premonition
* Burn in Despair!
* mus\_f\_part3

## Toriel

Toriel's theme. This song is used in three songs and one song from the demo OST.

* Fallen Down (the track in-game is played 25 cents above C# major in A440 equal-tempered tuning ; the sheet music shown above is written in D major)
* Fallen Down (Reprise) 0:00-1:18
* Bring It In, Guys! 3:34-3:47 syncopated to 4/4
* Empty House (a slower version of Fallen Down)

## Ruins

This leitmotif can be considered as the Underground theme, appearing in twelve official songs and 2 unused sound files.

* Ruins
* Waterfall 0:27-1:56
* Quiet Water
* Run![10]
* NGAHHH!! 0:34-1:22
* Spear of Justice 0:36-1:55
* An Ending, has a variation of the melody
* Don't Give Up, uses variation
* Respite, uses variation
* But the Earth Refused to Die, uses variation
* Bring It In, Guys! 1:48-2:14, uses variation
* Battle Against a True Hero 0:44-1:35, uses variation
* mus\_ruinspiano
* Undyne Battle (Unused) 0:29-1:17

## Enemy Approaching

This leitmotif is related to enemies or dogs. It appears in seven songs and one unused song.

* Enemy Approaching
* Anticipation (bassline) (this song also plays at extremely reduced speeds when battling Monster Kid, during the final encounters with Flowey in New Home, and at the end of a "Soulless" Pacifist playthrough)
* Dogsong, has the variation of the melody (a slowed-down version of this song plays after meeting Endogeny's sparing conditions)
* Temmie Village, also has the variation
* Tem Shop, also has the variation
* Stronger Monsters
* Bring It In, Guys! 0:00-0:34
* Donation Shrine (Boombox)
* Dogtroid

## Ghost Fight

This leitmotif is used in six songs.

* Ghost Fight
* Dogbass (Bassline)
* Dummy!
* Pathetic House
* Spider Dance
* Mad Mew Mew Battle

## Determination

The leitmotif for death. This song is used in two songs, one unlisted song and an unused audio file.

* Determination (as Photoshop Flowey laughs at the protagonist for dying to him, this song is sped up, looped, and played over itself)
* ASGORE 1:50-2:28 syncopated to 4/4
* mus\_snoresymphony
* mus\_kingdescription

## Sans

Sans's theme. Found in four songs, one of which is never played in the game.

* sans.
* It's Raining Somewhere Else (this song is played slightly slower in Sans's Room)
* Song That Might Play When You Fight Sans
* Bring It In, Guys! 0:40-0:46

## Papyrus

Papyrus' theme. Found in four songs, one of which is never played in the game.

* Nyeh Heh Heh!
* Bonetrousle (this song is played at an extremely reduced speed when encountering Papyrus for the last time in the Genocide Route)
* Song That Might Play When You Fight Sans 0:33-0:58
* Bring It In, Guys! 0:34-0:53

## Snowdin

These leitmotifs have two separate meanings to them.

### Hopes

The theme of Snowdin. Used in six songs.

* Snowy (a version of this song plays when fighting Snowdrake's Mother. It is heavily distorted, changing pitch and speed randomly every few seconds)
* Snowdin Town 0:00-0:56
* Shop 0:00-0:25
* Dating Start! 0:00-0:16, 0:37-0:54, 1:31-1:56
* Dating Fight! 0:00-0:13
* Bring It In, Guys! 0:54-1:16

### Dreams

Used to represent friendship, love or happiness. Used in eight songs.

* Snowdin Town 0:56-1:16
* Shop 0:25-0:50
* Dating Start! 0:16-0:35, 0:54-1:31
* Dating Fight! 0:13-0:35
* Confession
* Hopes and Dreams 2:15-3:01
* Reunited 3:56-4:25
* Bring It In, Guys! 1:16-1:29

## Undyne

Undyne's theme. Used in eight songs.

* Undyne
* Run! syncopated to 4/4
* Dating Tense! 0:17-0:25 syncopated to 4/4
* NGAHHH!! 0:00-0:34, has the variation of the melody
* Spear of Justice 0:00-0:36, also has the variation
* ASGORE 2:28-2:36, syncopated to 4/4, also has the variation
* Bring It In, Guys! 1:29-1:48, also has the variation
* Undyne Battle (Unused) 0:00-0:29,1:17-1:30 has the variation of the melody

## Another Medium

Theme of Hotland. Used in five songs. The theme originates from the song "Doctor" from Homestuck.

* Waterfall 0:00-0:27, 1:56-2:07
* Another Medium 0:00-0:51, 0:59-1:21, 1:51-2:10
* CORE has a variation of the melody.
* Death by Glamour, also has variations.
* Bring It In, Guys! also has variations.

## Alphys

Alphys' theme. Used in five songs, one of which was unused.

* Alphys
* Bird That Carries You Over A Disproportionately Small Gap
* She's Playing Piano
* Here We Are syncopated to 5/4
* Alphys Lab (Unused)

### It's Showtime!

Mettaton's main theme. Found in four songs and at least one other sound file.

* It's Showtime!
* Live Report syncopated to 3/4
* Death Report syncopated to 3/4
* Death by Glamour 1:30-1:56
* mus\_tv (i.e., Papyrus's TV)

### Hotel

The bassline of It's Showtime! is present in three Mettaton-related songs. It is considered as a separate leitmotif, as it has an entirely different melody.

* It's Showtime! (bassline)
* Hotel
* Can You Really Call This A Hotel, I Didn't Receive A Mint On My Pillow Or Anything
* CORE Approach

### Metal Crusher

Mettaton's battle theme. Used in three songs. This leitmotif originates from Noisemaster's Theme from Cucumber Quest.

* Metal Crusher 0:20-0:37
* Last Episode!
* Death by Glamour 1:04-1:30

## Asgore

Asgore's theme. Used in three songs.

* Bergentrückung
* ASGORE 0:00-0:33 (A variation of Bergentrückung)
* Bring It In, Guys! 3:25-3:34

## Asriel

Asriel's theme. Used in five songs.

* Memory
* Undertale 0:00-2:47, 3:27-6:21 (at times, the melody is barely perceptible among overlapping music. It is heard on a guitar for most of the song, becoming hard to distinguish after 3:27 ; the tune switches to a more audible sample after 4:42, to a quiet background piano at the key change around 5:20, and back to the second SoundFont at 5:57)
* The Choice (imperceptible), as it is a part of Undertale which contains the barely-audible Memory
* Finale 0:40-0:57
* His Theme

## Other

### Minor Leitmotifs

Uncommon leitmotifs.

* The Joystick Config songs - Uwa!! So Temperate♫, ...Holiday♫, and ...HEATS!!♫ - are all variations of each other.
* Home to Home (Music Box).
* Heartache to ASGORE 0:34-1:49.
* Dating Start! to Dating Fight!.
* Spooktune to Spookwave.
* Ghouliday to Jingle Bells.
* Live Report to Death Report.
* CORE 0:34-1:29 to Another Medium 0:52-2:22 and part 5 of Bring It In, Guys! 0:29-1:06
* The basslines of Death by Glamour 0:00-1:05 and Bring It In, Guys! 0:00-0:28 have the same melody, which is a variation of the CORE 0:00-1:01 bassline.
* Oh! One True Love to Oh! Dungeon and For The Fans.
* Battle Against a True Hero 0:00-1:36 to Power of "NEO".
* grandpatemi to the introduction of Metal Crusher.
* MEGALOVANIA to its previous incarnations.
* mus\_dogroom to the theme of the Dog Shrine.
* Your Best Nightmare 3:12-3:27 to Terezi's Theme 0:00-1:07
* Gaster's Theme has debatable uses in some songs.

### Similar Samples

* Sample used in Barrier is used in Amalgam
* Sample used in Ooo is used in Waterfall (0:14-0:25)
* A version of Flowey's laugh is used in Your Best Nightmare (0:16-0:22)
* mus\_smile is Muffet's laugh, sped up, reversed, and looped.
* Multiple songs from the soundtrack use instrument samples from other games.