I feel like swapping Shyren specifically with any enemy in Undertale that isn’t a one time encounter doesn’t really make much sense, although I generally don’t like swapping enemies in aus in general, but Shyren specifically always made the least amount of sense to me

[FINISHED] Since no one tried to make a swapshift playlist since the early days of the utsc, uhhh I wanted to take a crack at it

An Actually Decent SWAPSHIFT Mock-Up OST

Thumbnail art by @monochromatrix_ (According to the watermark)

Originally, there was going to be a nice little series where the community comes together and makes the undertale soundtrack, one song being assigned to one person. I was assigned Final Power, but.. we never really got that far in terms of the soundtrack, yeah. 

So, this being an unreleased song of mine, and I'm pretty sure the whole project is canceled, I decided to release my song here. So that you guys know I'm alive!
Enjoy!

Official Undertale Community OST - Final Power

New thumbnail by @bence1114.

Dialogue TBD.

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Leitmotif(s):
- Spooktune (based on @moonstrikefour's "The Emotional Piece": https://soundcloud.com/more-underswap/temmieswap-66)
- Ghouliday (based on @moonstrikefour's "Ghost in the Machine": https://soundcloud.com/more-underswap/temmieswap-54)
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Yes, that's right. Ores of Curiosity the Musical is a thing now. And yes, this is Once!Chara. ;)

More AU description TBD.

Song by: @hyperflowey

Thumbnail/ logo by: @bence1114

UNDERTALE(tm) belongs to Toby Fox
Underswap belongs to the community
temmie's underswap belongs to @moonstrikefour/"Temmie Chang"
Swapshift belongs to Brenny114

Undertale © Toby Fox

swapshift - An Emotional Story (OST 1)

New thumbnail by @bence1114.

* Name the fallen.
"BLOOKY"
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Leitmotif(s):
- Spooktune (based on @moonstrikefour's "The Emotional Piece": https://soundcloud.com/more-underswap/temmieswap-66)
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
The "fallen" in the dialogue refers to the Chara replacement. As you can tell, Napstablook takes the role of Chara. Meanwhile, Chara themselves takes the role of Frisk. Time for an epic journey to begin!

Swapshift belongs to Brenny114

Thumbnail/logo by: @bence1114

UNDERTALE(tm) belongs to Toby Fox
Underswap belongs to the community
temmie's underswap belongs to @moonstrikefour/"Temmie Chang"
Swapshift belongs to Brenny114

Undertale © Toby Fox

swapshift - Opening March (OST 2)

Update: New thumbnail by @bence1114.

* MY, MY...
* WHAT HAVE WE HERE?
* A HUMAN? A REAL, LIVE HUMAN?
* WHAT A DAZZLING SURPRISE!
* WELCOME, DARLING!
* I AM THE ONE AND ONLY…
* MARVABOT!
* THE FABULOUS ROBOT!
* HOPE YOU’RE READY FOR THE TIME OF YOUR LIFE.
* YOU’RE GOING TO LEARN SOME IMPORTANT LESSONS…
* ...ABOUT THE UNDERGROUND!
* BEST TO MEMORIZE, JOT DOWN NOTES, ETC.
* READY? IT’S SHOWTIME!
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Leitmotif(s):
- Metal Crusher (Bass)
- Metal Crusher (Part 1)
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
The dazzling Marvabot (based on the unused Robot 98 and Robot 100) takes the role of Flowey. They’re a charismatic sort, often hanging around the Sanctuary, waiting to make a name for themselves. What that entails is a mystery, of course, but perhaps humans unlucky enough to get on their bad side may find out through a little bit of... Drama! Action! Bloodshed!

Song by: @hyperflowey

New thumbnail by: @bence1114
swapshift logo by: @bence1114
Marvabot sprite by: Pocketpenny (https://pocketpennytm.tumblr.com/)

UNDERTALE(tm) belongs to Toby Fox
Underswap belongs to the community
temmie's underswap belongs to @moonstrikefour/"Temmie Chang"
Swapshift belongs to Brenny114
Undertale © Toby Fox

swapshift - Fabulous Fellow (OST 3) (OUTDATED)

Update: New thumbnail by @bence1114.

* that creep never stops showing up, does it?
* every time i check this place…
* that bot's always just standing there.
* makes me wonder what they’re up t-
* …
* oh…
* heh. that’s hilarious.
* next thing i know, a human falls down.
* you alright, kid?
* seems like you've had quite an event.
* name’s sans. sans the skeleton.
* i’m kind of a well-known figure at the flooded city.
* but i also take care of this old factory.
* by the way…
* i’m actually on a maintenance run right now…
* but it seems like your arrival’s an interesting case.
* why don’t you come with me?
* don’t worry, i got no *bone* to pick with you.
* i’ll gladly guide you over to my place.
* it’s got a cozy bed, some nice food...
* how’s that sound?
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Leitmotif(s):
- It's Raining Somewhere Else
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Sans takes the role of Toriel. He’s well-known among monsters in the Flooded City for his jokes and laid-back attitude. He also keeps watch over the city’s Old Factory (the Ruins replacement), because some monsters have been hanging around there in refuge from the rain and he wants to make sure everyone’s safe.

Speaking of areas, in this AU, areas swap in two ways: season-wise and aesthetics/style-wise. Here, the Ruins replacement (Old Factory/Flooded City) swaps seasons with Waterfall (Fall <> Spring), but swaps aesthetics with CORE (ruins <> factory).

Song by: @hyperflowey

Thumbnail by: @bence1114
swapshift logo by: @bence1114
Sans sprite by: @bence1114

UNDERTALE(tm) belongs to Toby Fox
Underswap belongs to the community
temmie's underswap belongs to @moonstrikefour/"Temmie Chang"
Swapshift belongs to Brenny114

Undertale © Toby Fox

swapshift - just an ordinary skeleton. (OST 4) (OUTDATED)

*So first, let’s go over the basics.
*See that heart floating around down there?
*That there is your SOUL.
*The very culmination of your being!
*You’re at LV 1, which means you’ve got a good heart.
*But the thing about good hearts is...they’re fragile. So be careful!

Hopeless is a roleshift AU inspired by the harsh aesthetic of Underfell. The harshness of the character's personalities altered the events following the human-monster conflict, leading to an underground riddled with disarray. That said, at their core everyone is still the classic characters you know and love, even if it's a little harder to see that than usual.
Inspired by Flowey being "the good one" in Underfell, Asriel is one of the few characters who retains his moral compass.

On that note, Asriel takes the role of Toriel. In order to protect their best friend Chara from the wrath of his parents and all of monsterkind, Asriel has barricaded himself and his friend within the Ruins, which he has turned into the happiest part of the Underground. Or at least he's trying to.

Hopeless writeup: https://docs.google.com/document/d/1tlOZPleifILojS_w9-bwOUOLVCdX7lruMep12zkjuY4/edit?usp=sharing
Hopeless OST list: https://soundcloud.com/toadiedoesalltheworktbh/sets/hopeless-ost

Learn more about Hopeless and other projects here! https://discord.gg/qmtQxwYKfD

Logo by @tripped-as-fawk-boi

[Hopeless] Kindness 101

i wanted the post-victory thing to be a loop of sans. but soundcloud is smelly

anyways, nice preview to my megalovania recreation

Victory! sans. - Super Smash Bros. Ultimate

... I'LL NEVER GET THIS...
AND EVEN IF I DO, IT WON'T BE SWIFT ENOUGH!!
I WON'T HAVE IT PERFECTED IN TIME...
* Papyrus.
* You're a skeleton. And a lanky one at that.
HEY!!
* I mean that in the nicest way possible.
* You have the PERFECT hands for piano playing!
* And you're stubborn. As. Shit.
* So don't you DARE throw in the towel now, because I know you can do this.
I....OKAY.
* Why do you even want to learn it anyways?
TH-THAT... DOESN'T MATTER!!
(IT DOESN'T DOES IT)
* No, no, it's fine... Fuhuhuhu...
* Honestly your reaction tells me more than I needed to know.
* Anyways. Stop doubting yourself, keep your jawbone clamped shut and do exactly what I do. Alright?
ALRI-
* Shush.
* Now let's begin. 

Furtherfell is an AU, split into several branches, portraying the various hypothetical neutral endings of the 'canon' Underfell. In this instance, 'canon' refers to the version on Tumblr, created by the infinitely talented Fella. They don't actually consider it canon, but for Furtherfell it most certainly is. It can be found here (https://underfell.tumblr.com/)
It is inspired by the concept of Aftergore, though only in concept and not in execution. Our story follows a human by the name of Hare, entering a world they do not understand, that has been forever changed by the actions of someone they've never even met.
We won't be 100% accurate to Underfell; some elements may be changed, either due to a lack of information or just due to us wanting something to differ.

"Furtherfell - Rethroned" follows on from an incomplete pacifist ending. Toriel comes out of hiding, and establishes herself as “Mother” of the underground, making swift changes to how things work. She maintains a strict rule, attempting to prevent another reign of tyranny. Humans are to be treated with kindness, and to be delivered to the Queen.

Wonderful live piano playing by @laucanosa-real!

Dialogue by @spudward

House by @wabble-deen

Thumbnail by Penny, https://pocketpennytm.tumblr.com/

Logo by @bence1114

Aftergore was created by Slick Silver and DashingToadie, and the content is uploaded to their shared account here:
@toadiedoesalltheworktbh

Join the AU's Discord Server here (if you'd like):
discord.gg/sma6J7wxKc

[FURTHERFELL - Rethroned] She's Teaching Him Piano (Guest Track - Noire)

*CHAOS ABOUND, ABOUND!
*THIS WORLD IS SPINNING, SPINNING!
*A TRUE ABOMINATION!
*TRAPPED ALL TOGETHER...
*AND YET SO FREE!
*UEE HEE HEE!
*THE CAROUSEL OF ENTROPY!
*ROUND AND ROUND AND ROUND IT GOES!

The mysterious Jevil takes the role of Gaster. Once again he's been influenced by a mysterious outside force beyond our understanding. He lurks just out of reality's bounds. No one he knows what he could be up to. Few even know of his existence. He just floats there. Waiting. Laughing.

Jevil was such a perfect character for Zeno. A clown made by Toby Fox who loves chaos and speaks in esoteric riddles. I know he was Zeno's favorite character. How could he not be?
As a die hard Toby Fox fan, I know Zeno was very excited for how Deltarune would turn out. With the release of Chapter 2, it is deeply saddening to us that he will never find out how it ends. Just another reason that he really should have reconsidered. What he did was a permanent solution to a temporary problem. I know that's a played out expression, and anyone experiencing suicidal thoughts or ideations likely will just roll their eyes, but from someone who has experienced its consequences firsthand, I hope everyone remembers that. Anyways, next time I visit Zeno-- or what's left of him, I suppose-- I'll be sure to tell him all about Queen, and Spamton, and everything else he's missed.

Equilibrium Dizrupted playlist: https://soundcloud.com/toadiedoesalltheworktbh/sets/equilibrium-dizrupted-ost

For more updates on this AU and many others: https://discord.gg/qmtQxwYKfD

[Equilibrium Dizrupted] Chaos Theory

This replaces "Determination"

The world may be against you.
But remember...
We're all here to support you, no matter what!
Now get up and show them what you got!
Always keep your faith.
Especially during the most wonderful time of the year...
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Undertale & Deltarune by Toby Fox
❄Book of Hymns❄ by @moonstrikefour
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Book of Hymns is a Deltarune-inspired AU that tells a story about a young teenager by the name of KRIS, who is foretold to light upon the harrowing mystery behind the infamous Mt. Elbrus, where misadventures linger in darkness.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
(Relevant) roles:
Kris - Frisk
Ralsei - Flowey
Rudolph "Rudy" Holiday - Toriel
Ralsei Dummy - Dummy
Catti - Napstablook

Enemies:
Blime (unused monster from the artbook) - Froggit
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Leitmotifs:
❄ Original
❄ Faint Courage/Darkness Falls

❄Book of Hymns❄ - Keep Your Faith (OST 011)

* alright.
* this here’s the old factory.
* once the center of industrialization for monsterkind…
* before folks started clamoring for more space.
* it rains a lot in this part of the underground…
* so parts of the area may be submerged underwater.
* but don’t let that sink your spirits.
* just be careful and stay close, ok kid?

* The sound of rain outside intermingles with the machinery…
* It fills your spirit with CONFIDENCE.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Leitmotif(s):
- Patient (Melody A)
- ASGORE
- Determination
- Patient (Melody B)
- Patient (Melody C)
- Heartache
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Ruins swaps aesthetics with CORE and seasons with Waterfall, and is now called the Old Factory. It's the run-down industrial center of Skelmurr City, named after the skeleton royal family and Dreemurr family’s union to help monsterkind in their darkest hour. It was the first settlement of monsters before they travelled further into the underground. Since run-off water always pours into the area, the area is now often referred to as the “Flooded City”. In the factory, there’s run-down gears and mechanisms, some of which serve as parts of puzzles for our fallen human to solve! But there’s always the risk presented by watery traps and runs-ins with local monsters roaming around the factory...

Song by: @bence1114

Thumbnail by: @bence1114
swapshift logo by: @bence1114

UNDERTALE(tm) belongs to Toby Fox
Underswap belongs to the community
Temmie's underswap belongs to @moonstrikefour/“Temmie Chang”
Swapshift belongs to Brenny114

Undertale © Toby Fox

swapshift - It's Raining Outside this Factory (OST 5) (OUTDATED)

*Heh, a hunk of scrap metal, eh?
*Haven't seen anything like you in a while!
*I'm Undyne, eternal hero and town kook!

Hydromix is a roleshift AU revolving around Waterfall characters. Undyne takes the role of Sans. She's much older now, a veteran hero who now just spends her days enjoying retirement and wishing everyone stopped treating her like a frail old thing.

[Hydromix] Ngah, and All That.

* Aaron flexes his way in!
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Leitmotif(s):
- "House" from Escaped Chasm
- "Hot Demon Man" from Escaped Chasm
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Time to start battling! The title is a double meaning by the way, it means danger is coming for Chara in neutral and pacifist runs (in the monsters), and danger is coming to monsters in genocide runs (Chara).

Relevant enemy swaps:
Aaron <> Froggit
Shyren <> Whimsun
Moldbygg <> Moldsmal
Snake/dragon monster (cut enemy from artbook) <> Loox
Woshua <> Vegetoid
Claw-winged monster (cut enemy from artbook) <> Migosp

Song by: @bence1114

Thumbnail by: @bence1114
swapshift logo by: @bence1114
UNDERTALE(tm) belongs to Toby Fox
Underswap belongs to the community
Temmie's underswap belongs to @moonstrikefour/“Temmie Chang”
Swapshift belongs to Brenny114
Undertale © Toby Fox

swapshift - Danger Incoming (OST 9)

UnderSwap STRIKING The Demon DOWN (Cover)

Old Swapfell track I made but never uploaded, and it still really holds up so I decided to just upload it now.
_____
Song by me
Thumbnail Edited by me
Her House by Xalia: https://soundcloud.com/undertaleaus/her-house-remake
Images used: https://www.pinterest.de/pin/91127592441276633/
https://www.pngplay.com/image/tag/mist

[SWAPFELL] - The Throne Room

The introduction for this piece of instrumental jazz/rock, starts with a repeated riff played on tenor sax. This is then joined by the soprano sax playing a counter melody, which is repeated with the addition of the baritone sax playing another counter melody.
The main tune is played on tenor sax with a rock/boogie backing, followed by an improvised alto sax solo.
Overall a piece of medium paced (140 bpm) instrumental jazz/rock using a combination of acoustic and electronic instruments.
Composed and recorded July 2025.

Gallivation

just a guy who likes undertale au music (mainly roleswaps)

Another AU Musical project that exists and will likely be a thing.

This is @hyperflowey's take on Swapshift, combining Storyshift with MoonStriker's underswap take.

Account run by: @hyperflowey and @bence1114 (Ores of Curiosity)
Inspired by:
@more-underswap (MoonStriker the Musical: underswap)
- Why_Bence the Musical: SWAPSWAP
- Pluto's Distortale

Logo and pfp by: @bence1114

==Roles==
* Chara > Frisk
* Marvabot (Unused Robot 98/99) > Flowey
* Sans > Toriel
* Lesser Dog > Dummy
* Undyne > Napstablook
* Frisk > Sans
* "Rex"/Monster Kid > Papyrus
* Flowey > Annoying Dog/"Toby"
* Asriel > Monster Kid
* Asgore > Undyne
* Toriel > Alphys
* Alphys/"???" > Mettaton
* Papyrus > Asgore
* Mettacrit > Asriel
* Napstablook > Chara

UNDERTALE(tm) belongs to Toby Fox
Underswap belongs to the community
temmie's underswap belongs to @moonstrikefour/"Temmie Chang"
Storyswap/Swapshift belongs to the community (original Storyswap AU made by Bluu)

swapshift - Danger Incoming (OST 9)

OfC the Musical: swapshift

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