Here are some Au themes I found when exploring the SoundCloud website. Enjoy.                                   
Rules for this Au Playlist:                                              
1. If there's a new version of the theme that sounds better, that theme will be replaced with the new version.                                                                     
2. If a Au theme haves a motif that similar to that theme, it won't be added to this playlist.                   
3. If an Au theme sounds so bad that it should get a V2, it's added to the bottom Best to Worst themes

Update: I Updated picture because that other one was outdated.

An Once Upon A Time Undertale AU Compilation 2025

Why do I need a FOURTH Undertale playlist

Requests

¯\_(ツ)_/¯

Yeah, I'm doing this.
Undertale Rearranged is a fun passion project where I attempt to rearrange all 101 tracks of Undertale.

UNDERTALE by Toby Fox.

001 Once Upon A Time - Undertale Rearranged

Not much to say for this one. It was fun experimenting with the composition.

001 - Once Upon A Time

[Underswap] Coldsea [Somewhat Original]

Song by : @asdfghjklqwweeee

This is the Ruins theme replacement.

[AUversal Lockdown] Canyon of Regulation

Snowy Forest

The "Ruins" replacement for Uneven connections.

[Uneven Connections] - Desert Ruins

* The lighthouse in the distance fills you with determination.

Song by Xinos.

Hypixel Motif: "Floggsymphony" by FloggfreakZ: https://www.youtube.com/watch?v=SkqaL8S_99A
No profit will be made off of this track.

005 - Ashore

This is from Other Super Mario Bros U: Halloween Special, a New Super Mario Bros U hack we released last Halloween. If you want to play this hack, you can find the download here: https://www.youtube.com/watch?v=Kr74Zj-q010

Other Super Mario Bros. U: Halloween Special

World 2 Map

World 2 Map - Other Super Mario Bros. U: Halloween Special

Tower

Tower - Other Super Mario Bros. U: Halloween Special

Castle

Castle - Other Super Mario Bros. U: Halloween Special

Bowser in the Dark World DX

Check it out on YouTube: https://youtu.be/jjd7OQHw8Kc

===== NOTES =====
This was made for @whoevenreadsurls! Thank you for your request and helping me make it to your wishes ^-^

I really had fun making this, (which says a lot because I normally enjoy making songs). And honestly, I figured I'd start this off with a Gangplank bang!

===== CREDITS =====
Track by: Myself (@dashingtoadie-the-sequel)
AU by: Guac (@guaciscool)
Title by: Guac
Thumbnail by: Slick (@slick_silver)
Logo by: Slick

[Alchemized Modifications] One Derangeable Despot + Gangplank Galleon Brawl

Check it out on YouTube: https://youtu.be/k6DVvzaNIss

===== NOTES =====
This was made for @jairomusicemporium. There's been countless times that I've considered making a take on this myself, but never actually got around to doing it. So thanks so much for your requests!

===== CREDITS =====
Track by: Myself (@dashingtoadie-the-sequel)
Original and inspiration by: Keno9988 (@keno9988v-official)
Thumbnail by: Slick (@slick_silver)
Papyrus sprite by: Dorked (@megaflamehedge)
Logo by: Voltra
AU by: Voltra

[Storyshift] Arthritis (Boneache) (Mushroomized)

===== NOTES =====
This was made for @weeabooextreme! I'm also part of this AU along with quite a few other awesome potatoes (that's a compliment, potatoes).

Also, wow, I can't believe I've managed to actually keep up a consistent upload schedule thus far.

===== CREDITS =====
Track by: Myself (@dashingtoadie-the-sequel)
Thumbnail by: Slick (@slick_silver) (please like it he tried really hard and graphic design is his passion pls)
AU by: Audrey (@weeabooextreme)
Title by: Slick
Art by: 
- DefinitelyNami#3074 (Art on the left); 
- Slick (art on the right)
Logo by: Pexagon (@pexagon)

[A New Tomorrow] Making Things Write

Check it out on YouTube: https://youtu.be/lL9Dgn0VzMs

===== NOTES =====
This was made for @droplikaenecake! I've never actually made a CORE-based theme, and I'm really proud of how it turned out, especially *because* it's my first one. I hope you all enjoy this as much as I had fun making this!

Also I guess goodbye consistent uploads lmao

===== CREDITS =====
Track by: Myself (@dashingtoadie-the-sequel)
Thumbnail by: Slick (@slick_silver)
Art by: https://twitter.com/NightMargin/ (https://twitter.com/NightMargin/status/658211560767119360)
Title by: Myself

[Underswap] EXTERIOR

Check it out on YouTube: https://youtu.be/PHHw2WE7iXM

===== NOTES =====
This was made for @greedydirtbag! I had a lot of fun making this and am hella proud of the solo section I added in the end. I hope everyone enjoys it too!

Edit: OF COURSE THE FUCKING CHAOS KING DOES WELL

===== CREDITS =====
Track by: Myself (@dashingtoadie-the-sequel)
Title by: Myself
Thumbnail by: Myself

bone king. - a Sans-themed Chaos King

===== NOTES =====
This was made for @the-average-everyday-dude! I had the most random idea when I started this and ended up carrying it out. I hope you all enjoy!

===== CREDITS =====
Track by: Myself (@dashingtoadie-the-sequel)
Title by: Jaws (@the-average-everyday-dude)
Thumbnail by: Slick (@slick_silver)
Logo by: P4ralleL (@linear-return)

[Mixed Mashups] MashedUp

MEGALOCHAOSKING v2

MEGALOCHAOSKING v1: https://soundcloud.com/sa-banette/deltaspin-megalochaosking-a-lancers-dad-megalovania

Idea by: https://soundcloud.com/oh-no-thats-over

Art by: http://imgylar.pw/king-spade-Tumblr-t.html

New name by: https://soundcloud.com/yeet-my-brothers
Chaos king ITSO Msb flp: @polarlal1

ᴛʏʀᴀɴɴʏ

CREDITS:
Full song by: @dashingtoadie-the-sequel
-----

[* this is the once upon a time replacement of my au.]

* long ago, two races ruled over earth: humans and monsters.
* one day, war broke out between the two races.
* after a long battle, the humans were victorious.
* they sealed the monsters underground with a magic spell.
* many years later...

mt. ebott
201x

* legends say that those who climb the mountain never return.

001 - once upon a time.

Check out the original Soundtrack:
https://tobyfox.bandcamp.com/album/undertale-soundtrack

001 | Beginning Anew

UNDERTALE Soundtrack

If you've stumbled onto this account (or have seen any of the uploads), this is an account I (@dashingtoadie-the-sequel) made to upload all of the songs people requested me to make, back when I took those 23905 requests.

===== REQUESTS UPLOADED ELSEWHERE =====
@spiritualworks / @sofd-official-archive: A Tale of Danmaku's Ruins theme - Through the Immortal Forest
https://soundcloud.com/sofd-official-archive/snowy-village-but-its-not-snowy

@jewish_boi_69: A Date with Destiny v2
https://soundcloud.com/dashingtoadie-the-sequel/look-i-finally-completed-an-update-to-a-megalo-wow

[Mixed Mashups] MashedUp

💛Toadie💛 (Request Dump)