There is a high-dimensional creature in the void outside of the multiverse. By chance, he found the multiverse in the three-dimensional space. He was attracted by the various parallel universes. Then he observed and recorded the multiverse. The creature established his lab in the void--【Misery Abyss】 and named himself 【Observer!Gaster】 (ALL of this created by Cage of Abyss and MC-Hooray)

Ending Time Octet (Full OST+UST)

A polished version with the official/canon ones :)

Ending Time Octet [Full Collection]

CAGE OF ABYSS ENDING TIME OCTET

One Left

Copy of Ending Time Octet

a compilation of songs i liked or just sang in the shower

some of my favorite songs

ending time octet

эээ хызе всё шо мне нравится

[* you're gonna have a bad time.]

▬ 𝗖𝗥𝗘𝗗𝗜𝗧𝗦 ▬▬▬▬▬▬▬▬▬▬
@sasterdadudester
@jedotime
@taesskull

Undertale: [Call of the Void]: Phase 3a - one left.

I'm not the creator of this video, support the original creator
Music by MC-Hooray
Sprites by 屑-地狱-阴间-史莱姆
Video production by MC-Hooray
Upload because no intro I remove

Ending Time Octet - Phase 6: The Beginner, The Ender

Ending Time Octet - Phase 1.5: But They'll Refuse [v2]

【Ending Time Octet】(Phase 2)Octuple The Hatred

Copying again from youtube here we gooooooo

Wooo phase 1.5
This is my first time doing this in nearly 3 years from my original last breath ost remix video. I tried to go with a more hopeful feel, with the heartbeats and timpani adding a dark presence in the background as a representation of the man who speaks in hands. Phase 2 is essentially done too! I'm just cleaning up certain bits, my mac was literally exploding and garageband crashed roughly 4 times while making it lol.

Anyways, enjoy phase 1.5!

Contact me on freiaaa or join my discord at https://discord.gg/8ZPx4z6aJ7 :D

Credit time, yippeeeee
Original by Benlab
Sprite by Toby Fox

UNDERTALE LAST BREATH - But He Refused To Give Up [Freimix]

THANK YOU FOR SUPPORTING ME FOR 1 YEARS!

Credit's
Thumbnail by: @radioaman-dokan

UNDERTALE: Call of the Void and "one left." by: Saster 
Music help: @epictheepicman

I always wanted to make an animated COTV video, and now thanks to Laisa I FINALLY GOT IT
https://www.youtube.com/watch?v=F4UrFQpxYFc

Thanks again for supporting me and Hope you like it!

UNDERTALE: [Call of the Void] Refreshed - ONE LEFT

had the motivation to make a cotv cover woohoo

hi apple :3

i completely fucked up the last part im sorry


~ [CREDITS] ~

Undertale: Call Of The Void by J-Bug and Saster
one left. by Saster, Juora and Taeskull
Sprites and cover by yours truly :3

UNDERTALE: Call Of The Void ~ one left. (Cover)

Ending Time Octet phase 3 boomranged OST 008

Original: https://www.bilibili.com/video/BV18G411T7FL?vd_source=4a80ab65efa6118e86fddc7e7511feab

【Ending Time Octet】??? OST - 001 The Wonderful Reverse

Original: https://www.bilibili.com/video/BV1dg411p7PV?vd_source=4a80ab65efa6118e86fddc7e7511feab

【Ending Time Octet】Phase 1 OST - 003 Timeline Intersection

Original: https://www.bilibili.com/video/BV15o4y1P7vh?vd_source=4a80ab65efa6118e86fddc7e7511feab

【Ending Time Octet】Phase 1.5 OST - 005 But They'll Refuse

[Undertale: Last Breath] OST 010 - Twisted Reality

(Approved by ZerJox, but canceled by mr. fazbear)

This song is an official part of Undertale: Last Breath OST.
I created this track about a year ago. It's a unique experience! I've been waiting for a long time to post it!

Youtube Upload: https://www.youtube.com/watch?v=KefxCZBK2n4

Lyrics by ZerJox
Undertale by Toby Fox
Undertale: Last Breath by mr. fazbear
Art by Xeron

[Undertale: Last Breath] OST 010 - Twisted Reality (scrapped)

Original: https://www.bilibili.com/video/BV13hsteXEkS?vd_source=4a80ab65efa6118e86fddc7e7511feab

【Ending Time Octet】Phase 2.5 OST - 007 No Cheating! II

Original: https://b23.tv/XSmFHgv
Planning by ‪@EpiphanyMint-w2u‬ &咖啡匠心_Official  
Music by ‪@gsfutmusicfan3603‬  
Sprites by ‪@EpiphanyMint-w2u‬&咖啡匠心_Official&Cr-Ba  
PV by 54FAIL&正经的秀儿&裂憨_烈h&咖啡匠心_Official  
Cover by 303sc  
Thumbnail by 54FAIL


AU
Karmatic Time Trio by Homiecyde&DJ Skel
Karmatic Time Forward by @EpiphanyMint-w2u  
Undertale: Call Of The Void ‪@SasterSub0ru‬ &‪@JBUG‬ 
Undertale: Last Breath by Zerjox & Team Imagination
Undertale: Hardmode by Toby Fox & Re-creation By Divide)
Undertale: Karma's a B1#ch (Old Original by Memeforce)
Undertale: Karma's a B1#ch REMASTERED by ‪@EpiphanyMint-w2u‬

Karmatic Time Forward OST  007 [Phase 3] - ONE Glaring Terminal

PT-------------------OBG POR ASSISTIR--------------------PT
musica: one left.
por: Saster & Juora & TaeSkull
programa: FL Studio
YouTube: https://www.youtube.com/@asriel_dreemurr251
link do discord: https://discord.gg/mfbCwnfBr8
contato: asriel251contact@gmail.com
--------------------------------------------------------------------------------------------

EN-------------------- THX FOR WATCHING -------------------EN
music: one left.
by: Saster & Juora & TaeSkull
program: FL Studio
YouTube: https://www.youtube.com/@asriel_dreemurr251
discord link: https://discord.gg/mfbCwnfBr8
contact: asriel251contact@gmail.com
--------------------------------------------------------------------------------------------

one left. -UNDERTALE: Call of The Void REMIX-

[No AU] - Over.

Discord - discord.com/invite/wZqFvRnUX6
SoundCloud - @coa-89206987
Bilibili - space.bilibili.com/519652772
Gamejolt - gamejolt.com/games/CageofAbyss

【Ending Time Octet】Phase 2 OST - 006 Bloodily Sinking

Triple The P.S.Y.C.H.O.T.I.C (Great Time Trio)

D.A.W.N AKA Daybreak's Awakening Within Nihility

Original: https://b23.tv/nBeBJ0X
Planning by ‪@EpiphanyMint-w2u‬&咖啡匠心_Official 
Music by ‪@gsfutmusicfan3603‬ 
Sprite by Daviz
PV by ﻿啥也不会的屑B

i dont have permission for this im just putting it here for people who want it on soundcloud

man why do they always put COTV in almost every KTT

Karmatic Time Forward OST: 008 [Phase 3.5A] - D.A.W.N <Not Mine>

Listen to or Buy the HD file on BandCamp for $1! 
https://nik2656.bandcamp.com/track/contingency
Listen to contingency on Spotify!!
https://open.spotify.com/track/5kPYL92yg7bjImVBv54UOg
------------------------------------------------
Discord server : https://discord.gg/4bMBhphEgK
Twitter : https://twitter.com/nIk2656
BlueSky : https://bsky.app/profile/nik2656.bsky.social
YouTube: https://www.youtube.com/c/NickolasM/featured
Bandcamp : https://nik2656.bandcamp.com/
Ko-Fi Shop : https://ko-fi.com/nik2656/shop
------------------------------------------------

@kassheart commissioned this
@mr-voiddy made the thumbnail.

distrokid

PAPYRUS' BELIEF

contingency.

Original track by https://soundcloud.com/sasterdadudester https://soundcloud.com/jedotime https://soundcloud.com/taeskull3
art by jay

I'm finally back with a new Undertale fan track! For a while, I've been busy and now I have time to work on it. I'll be back with the next song soon! Enjoy :))

Undertale : [Call of the Void] - One Left. [2025's Cover]

Original: https://b23.tv/xFY6cJX
Youtube Source of the pv: https://youtu.be/4CGTnj4lc5w
KO!ETO by nw1156 
Music by Kake011_  , nw1156  
贴图 by 无尽重叠 , shoes , Kake011_ , 宿敌秋风 ,事sans头呃呃呃_siyu , KR1013_ , just_LTT (in no particular order)
PV by 594

NOTHING HERE BELONGS TO ME

KO!Ending Time Octet - Phase 4 Thundering Symphony Full

DELTARUNE Chapters 3+4 (Original Game Soundtrack)

12am

Original: https://b23.tv/rHtwmnc
Composition: Takamatsu_Paper
Cover: Heart-Dream 
Original work: coa team

Ending Time Octet / Phase 5 / One Left...? / V1

i saw a tweet where someone just slapped the instruments of "sans." on a rude buster midi and so i ended up making this

i imagine it'd play in a hypothetical friendly sparring match-type secret boss, like gerson

Deltarune - Song That Plays When You Fight Sans [fantrack]

original by https://soundcloud.com/vsauce_4 
remix by wonderless

Play Facing Demons / DEVILOVANIA:
https://gamejolt.com/games/igb_dv/343813

Facing Demons OST | Insantion (Remix) alt[2]

by wonderless

Play Facing Demons / DEVILOVANIA:
https://gamejolt.com/games/igb_dv/343813

Facing Demons OST | Autophobia Jingles Back - Bonus [1]

original by nomico, ZUN
remix by Alstroemeria Records
mix by wonderless

Play Facing Demons / DEVILOVANIA:
https://gamejolt.com/games/igb_dv/343813

Facing Demons OST | Bad Apple (sang by Chara & Asriel) - Bonus [2]

Facing Demons OST | Annihilation nation - Bonus [3]

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Undertale enthusiast
---------------------
Fandoms: UTC, Forsaken, Oneshot, Indie cross,  etc.
---------------------
ALL MUSIC I UPLOAD BELONG TO THEIR RESPECTIVE CREATORS, NONE OF THE MUSIC HERE BELONGS TO ME
---------------------
Art: https://www.pixilart.com/casualsmashy
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Ending Time Octet / Phase 5 / One Left...? / V1

Casualty