Hidden Music Tracks

This page contains music tracks present in Deltarune that are not officially listed on its Chapter 1 or Chapter 2 soundtrack.
== man ==
This track plays in hidden rooms where the Man appears. The song was originally created by Toby Fox as a fan song titled "waltz of seccom masada" for the game Yume Nikki. The original title implies it was associated with the character Seccom Masada. It was part of a collection of songs called "made up yume nikkis" that was posted on Fox's Tumblr blog.
== Dogcheck songs ==
These tracks play when triggering a Dogcheck, a fail-safe that is activated when attempting to access inaccessible or nonexistent rooms.
=== Dog Check === 
This track plays when a Dogcheck is triggered in Chapter 1, in which the Annoying Dog is seen sleeping. It is referred to within the code as SONG_THAT_EMERGES_FROM_A_SLEEPING_DOG and is titled on the Undertale 6th anniversary stream as "Dog Check." This track is an arrangement of Dogsong from Undertale with part of Don't Forget at the end. An alternate version of this track plays in the UNDERTALE 8th Anniversary merchandise video with an arrangement of Home from Undertale at the end.
=== alarm_titlescreen ===
This track plays when a Dogcheck is triggered in Chapter 2, in which the Annoying Dog drives his car across the screen accompanied by several smaller cars at varying speeds.
== Snowgrave Route Exclusive Music Tracks ==
While Undertale's Genocide Route simply alters the volume and pitch of most background music tracks to provide an unsettling atmosphere, the equivalent Snowgrave Route instead uses alternate tracks encoded as their own files. The Snowgrave Route was a total secret at the time of the Chapter 2 OST's release.
=== cybercity_alt ===
This is an altered arrangement of WELCOME TO THE CITY that incessantly loops the original version's intro melody at a lower tempo with a somber tone. When played in-game, the track is sped-up with a higher pitch, more closely resembling the original.
=== d ===
This track plays before Berdly's variant fight in the Snowgrave Route when Noelle realizes he is her and Kris's opponent. The filename plus its extension spells "dogg."
=== berdly_battle_heartbeat_true ===
This tense track plays during Berdly's variant fight. It resembles the percussion at the beginning of Smart Race, as well as the sound of a heartbeat, as suggested by its filename.
=== flashback_excerpt ===
This track plays during Noelle's monologue after leaving Rudy's hospital room. The word "excerpt" in the filename may imply that it is an excerpt of another currently unheard track.
== Hidden Sound Tracks in deltarune.com ==
Hidden music tracks and other sound effects that were added on the official Deltarune website, most during the Spamton Sweepstakes charity event.
=== midi-spamton ===
midi-spamton is one of the five songs that has a chance of being playable on the Spamton Sweepstakes page. It is a MIDI variant of the song Spamton.
=== midi-spamton-battle ===
midi-spamton-battle is one of the five songs that has a chance of being playable on the Spamton Sweepstakes page. It is a MIDI variant of NOW'S YOUR CHANCE TO BE A.
=== midi-bigshot_byShinkoNetCavy ===
midi-bigshot_byShinkoNetCavy is one of the five songs that has a chance of being playable on the Spamton Sweepstakes page. It is a MIDI variant of BIG SHOT made by ShinkoNet.
=== midi-cybers-world_byShinkoNetCavy ===
midi-cybers-world_byShinkoNetCavy is one of the five songs that has a chance of being playable on the Spamton Sweepstakes page. It is a MIDI variant of A CYBER'S WORLD? made by ShinkoNet.
=== midi-pandora-palace_byShinkoNetCavy ===
midi-pandora-palace_byShinkoNetCavy is one of the five songs that has a chance of being playable on the Spamton Sweepstakes page. It is a MIDI variant of Pandora Palace made by ShinkoNet.
=== results ===
results plays by visiting any nonexistent page on deltarune.com and clicking the sleeping dog. The song contains a leitmotif of the Undertale songs Uwa!! So Temperate♫, ...Holiday♫, and ...HEATS!!♫ from the Joystick Config/Settings menu.
=== baci_perugina2 ===
baci_perugina2 is another hidden song in deltarune.com's error page. Upon refreshing, the page has a 1 in 20 chance of displaying a dog with maracas which will play this song when clicked. The filename references the Baci Perugina, a candy produced by Italian company Perugina which always comes with a love note in the wrapping, and thus with "hidden content" such as the content on this page.
=== dog ===
dog plays on deltarune.com/dog upon clicking the empty frame. It quotes the tune of HEY EVERY !.
=== midi-holiday-country ===
midi-holiday-country plays on deltarune.com/code and deltarune.com/code/comments when the play button is clicked. It is a MIDI rendition of Jingle Bells.
=== midi-holiday_country ===
midi-holiday_country plays on deltarune.com/catpetterz as a corrupted version of midi-holiday-country. The song is a rendition of Jingle Bells, but heavily corrupted. The song's tempo randomly speeds up and slows down as the song progresses.
=== pianpian ===
pianpian plays on deltarune.com/kris_dreemurr_kris. The song consists of only a piano with repeating notes.
=== findher ===
findher plays on deltarune.com/dess when the red guitar is clicked. It is a guitar only variant of Lost Girl.
=== lancer-spin ===
lancer-spin plays on deltarune.com/lancer when the miniature Lancer is clicked. It is a short chiptune track using the Lancer leitmotif, reminiscent of Acid Tunnel of Love.
=== battle_vapor ===
battle_vapor plays on deltarune.com/weather when clicking on the two weather Darkners named Lanino and ElninaUndertale/Deltarune Newsletter - Winter 2024 (Lanino and Elnina Valentine's Day Card), and deltarune.com/shadowmen when clicking on the video. It is a short, slow-paced vaporwave version of the main Encounter theme, Rude Buster.
=== water ===
water plays on deltarune.com/chair when clicking the chair. It is an echoing variant of the water sound that is used in some areas in Undertale's Waterfall and in the River Person rooms.
=== face ===
face is a short laughing sound effect that can randomly play on deltarune.com/chair. The sound plays during the jumpscare with the pair of yellow and pink eyes if the chair is clicked enough times.
=== ocean ===
ocean plays on deltarune.com/d_a_m_n_y_o_u_t_e_n_n_a after clicking on the crossed-out TV, then on the upper noise square when scrolling to the bottom of the static noise page. It is a static noise version of the ocean wave sound that plays before Kris wakes up in ?????? in Chapter 1, and when Kris and Susie idle at the Lake Path shoreline in Chapter 2.
=== greenroom ===
greenroom plays on deltarune.com/ramb once the door on the left is clicked for the first time. Despite having a similar title and referring to the same location, this song has a slightly different arrangement than that of the Green Room track shown off in the September 2022 Status Update, which is titled "update2022-greenroom."
=== keygen_credits ===
keygen_credits plays on the Spamton Sweepstakes credits page when visited. It is a longer, extended version of the song KEYGEN and quotes Spamton's leitmotif.
=== midi-dialtone ===
midi-dialtone has been found mysteriously, as it wasn't assigned to a page. It is a MIDI variant of Dialtone. It has since been removed from the website.
== References ==
zh:隐藏音乐
ru:Скрытые музыкальные треки (Deltarune)
Category:Music