Unused Music Tracks

This is a page containing many tracks not present in the Undertale Yellow Soundtrack or playing in the final game.

Within the game files

dalv_diary

This track was intended to be used when reading Dalv's diary entries in his room on a Neutral Route. Based on its metadata, it was created in 2016.

mail_jingle_alt

Judging by its filename, this seems to be an alternate version of the jingle heard when interacting with a UGPS sign. This jingle sounds very similar to Your Reality from the game Doki Doki Literature Club!. Based on its metadata, it was created in 2019.

micro_temperature

This track was intended to play in the Golden Coffee room, but was scrapped due to the room being too small. It uses the Fun-Sized leitmotif, like other tracks associated with Micro and Macro Froggit.

lounging_around

Judging by its filename, this seems to be a beta/alternate version of Relaxation.

pipin_hot_yellow

This seems to be a beta/alternate version of Honeydew Cabin and uses the Honeydew Resort leitmotif.

cafe_arcade

Judging by its filename, this seems to be either a beta version of ラブ･ブラスター!, or a scrapped theme for another arcade game in the Café Dune. Alternatively, it may have been intended to fade in dynamically when approaching the arcade machines, as seen with Mining Co-ncussion. It uses the same melody as Café Dune (Soundtrack).

trampled_flowers

Judging by its filename and melody, this seems to be a beta/alternate version of TENTH LEVEL LOCKDOWN. It uses the Greenhouse leitmotif. According to file metadata, it was composed by MyNewSoundtrack and Figburn in 2017.

mothers_love_temp / unforgiving

These two files, which are duplicates of each other, are a placeholder track for A Mother's Love, made in 2018 but left in the files by accident. The track appears to have been composed by Figburn. They use the Once Upon a Time, Flowey, Justice, Ketsukane and Oasis Valley leitmotifs.

final_stand

This track is an early version of Retribution, meant to play in Martlet's Genocide Route fight. NoteBlock composed this track, but it was deemed too cheerful and replaced with Retribution two months before release. It uses the Martlet, Enemy Retreating and Determination leitmotifs.

Outside the game files

Break the Mold

This track was released on April 1, 2017 on YouTube by Master Sword. It is a piano rendition of All Star by Smash Mouth, meant as an April Fools joke. The piano in the song is by Master Sword's brother, emBer.

Drifting

This track was released in 2017 on YouTube by Master Sword. According to its video description, it was supposed to play in a canceled underwater area in Undertale Yellow. It was also released as a bonus track in the game's soundtrack on SoundCloud account.

Oasis Valley (Beta)

This track was released in 2024 on YouTube by MyNewSoundtrack. According to the its video description, it was a theme made for Oasis Valley, but it didn't really fit the vibe so Figburn and Master Sword took over and composed the final version that can be heard in game.

Powered Down Steamworks

This track was released in 2024 on YouTube by MyNewSoundtrack. According to the track's YouTube video description, it was supposed to play from the moment Clover (and Ceroba, on the Pacifist Route) enter the Steamworks until pressing the switch that turns the generator on and makes Meltdown play. It was cut because Meltdown replacing Tomorrow Means The Surface upon powering the generator had a bigger impact.

Demo

These tracks were in the Undertale Yellow Demo Soundtrack, but not in the final game.

To Be Continued

Main article: To Be Continued

This track plays in the ending credits of the demo. It was also used in the Demo Launch Trailer for Undertale Yellow.

Boppin'

Main article: Boppin'

This track is not used in the game but rather used in the FIGHT Demonstration YouTube video.

Peaceful Home / Good News and Bad News

This track used to be the 18th track in the Undertale Yellow Demo OST. It got removed from the soundtrack on YouTube at some point in development, even though it remained available on SoundCloud and Game Jolt. It was composed by Master Sword.

Judging by the original title, "Peaceful Home" and the Martlet leitmotif, it was likely planned to be possible to enter her house at some point in development. Judging by its second title, "Good News and Bad News", it was likely considered to be used for Martlet meeting Clover after the Starlo boss fight.