Quality is not a considered factor; if it's a Sans Bonetrousle at all (or "Sanstrousle"), then it goes in. Period. If you find any I don't have in this playlist, send them to me in a Discord DM (dexiedoo_octo). Rules below.

NOTE: "BONE ATTACK" by Miles Torres is stolen. It is actually by MrSebas on Youtube, listen to the original upload here: https://www.youtube.com/watch?v=npnOgILjU-o
I am keeping it here as MrSebas has never uploaded the song to SoundCloud.

To clarify, this is not just Underswap. Any AU where Sans takes on the role of Papyrus is fair game, and songs that replace the Bonetrousle functionality are what count.
In a case where only a Nyeh Heh Heh equivalent is available, I will include that. If a Bonetrousle version of that Nyeh Heh Heh is released, it will replace the corresponding Nyeh Heh Heh track in this playlist.

The playlist is sorted by AU:
- Canon and Fanon Underswap
- TS!Underswap
- Misc. Underswap Takes
- Swapswapswap / Tripleswap
- Inverted Fate
- Misc. "Sans as Papyrus" AUs
- Underswap Combo AUs
- No AU

Every Single Sans Bonetrousle/NHH

mk18

mediocre music

Track by Dexie: https://soundcloud.com/dexietwo

Info: https://docs.google.com/document/d/1c0A_nrOgonQZ_PJl0NWFWcVQV68OKdVhIBe2wXOjwoc/edit

thumbnail by: Lightzen

024 - Musclepower

EDIT: (08/02/21) Ohh, brother... this song STINKS! - Div

Yep! It's an update with some sick Shreddage to go with it! I hope you all enjoy this update, and... here's a little gift, as well:

THE FIRST EVER... PUBLIC FLP FROM OD! 

It's [HARD-MODE]'s most updated FLP, including the soundfonts used and the drum samples used as well! (Shreddage not included)There's also two free .mp3s in this .zip archive, so have fun with this FLP, remember to credit me, and tag it as HARD-FILE so that I can see everything you guys make with it! 
https://www.dropbox.com/s/iyeahh5vpezihmj/%5BHARD-MODE%5D%20PUBLIC%20FLP.zip?dl=0

[HARD - MODE] (Updated)

this song is actually gonna be used in an undertale mod. check it out here: https://gamejolt.com/games/txunderswap-official/345683

{Underswap} Tired, but still Trying! + Aware Of The Changes (UPDATED)

Thumbnail by https://soundcloud.com/aldreiy-pablo
Original by @sasterdadudester and @fnafsm
Art by Capcom

I hope you believed it when I said I didn't have enough motivation to make a gift, because I wanted this to be as surprising as possible! I didn't really lie that much though, it wasn't easy forcing myself to make this. I know it isn't my cleanest piece, I usually take a lot longer than this to make a song, this was a bit rushed so it's a bit iffy, but I really hope you enjoy it anyways!

Now then, let's talk about the Birthday Boy himself: @sasterdadudester. Saster is one of the GREATEST people I've ever had the absolute pleasure of calling my friend. He's so sweet, nice, helpful and kind, one of my best friends ever. I love you like a brother Sas, I really enjoy all the time we spend together and you'll always be like family to me. That special time of year has come around, you're one step further in life, and in your own words, this is my poorly wrapped gift to you. 

Thanks for being epic, Love Igni

[Happy Birthday Saster!] REPROGRAMMED/MEGA BUSTER .:Ignited Edition:.

After a long time, finally, together with ShadeWolf, we present our version of BULLET BLITZ, I regret the delay and thank you very much to all who waited for the presentation to end, I really regret having delayed too much, laziness won us, but the cover finally finished, thank you very much for waiting!!!

The SC of the hairy oppressor creator of themes such as the marcianitolovania
@somebodykillme

The SC of this beautiful boy who made the drawing for this cover
@eliefer

And let's not forget Max who edited the drawing and put great things on it
@not-maxvillasanc

The original creator of fornaislovania
@kursou

> God, the track exceeded 400, thank you very much everyone, to thank you I will leave the link of the FLP, if you plan to edit it or use it for something, give us credit, please
https://cdn.discordapp.com/attachments/592191062752231427/592915877524144149/Bullet_Blitz_ft._ShadeWolf.flp

Bᴜʟʟᴇᴛ Bʟɪᴛᴢ (ft. ShadeWolf) +FLP

Original art by @echiono.
Song contributed by @sasterdadudester.

????-??-??.

010 | Unnamed RM Ghost Fight [Unfinished]

EDIT: https://soundcloud.com/polytoast/underswap-mystification-v2
image source - https://www.reddit.com/r/Undertale/comments/926oy1/underswap_papyrus_geno_fight/

just a fun megalo made as a composition test, and i'm pretty proud of the outcome! also this is unofficial, obviously

[Underswap] - MYSTIFICATION

* You feel an ever growing chilliness fill the empty room
* Weegee stands before you, giving you the cold shoulder.
* You feel like there will be a great reckoning.
here’s and update to weggo’s(weegee) custom megalo, and thanks a bunch to @sasterdadudester for making the song good, it's greatly appreciated!
thumbnail by. @fire_mario_fan
check out the youtube version! (https://youtu.be/Z8iaSFJNWJQ)

KILL AURA [ft. Saster]

MERRYGOVANIA - A Boo "Megalovania" [v4]

Hope you still enjoy a classic! have a nice day!

Join our server!
https://discord.gg/RnRSsb9

Thumbnail by Avranik
Assets used in thumbnail by Pixel-icon15, Mrky and Pongy

UNDERTALE: No More Deals

This is an Undertale AU Concept that based on a very well known Alternative Universe called Storyshift which was created and claimed by "Voltra". This specific AU typically does represent the original character roster from Storyshift but only to be set in a futuristic fantasy with more character design variations and "different" stories, plots and lores. The name of this AU comes from the idea of Undertale itself, returns to a complete alteration and changes, stated as "RE: Turned", in the way of having the main casts' roles scrambled around (places and locations included). If spotted any issues, please proceed to guide me right away and I'll surely erase the mistake and hopefully won't cause any more problems in the future, Thank you.

Tomorrow Valley; RE:Turned #017 - Jungle

v4: https://soundcloud.com/xhitest/dying-light-distant-night


v2 was a disappointment so here's something better
artwork: https://danbooru.donmai.us/posts/2972350

(Check Description) DYING LIGHT [v3]

[Undertale AU] - Sans-ational (STMPWYFTSS V2)

M87 and ainavol by Kae
AGEM by boiled

(This is not from Last Breath : Reborn or something, its just a take on m87)

something (m87) (its like a remastered unofficial version...) (OLD & BAD)

* I'M GONNA HIT YA WITH THIS BONE YA HEAR
* YA ARE GONNA BE CAPTURED BRUV
-
Undertale by Toby "Radiation" Fox
Underswap owned by Hatsune Miku
Sprite in the thumbnail by @rocket-girl-03
-
Hope you like this it took me some time to make :)
also this is based on Popcornpr1nce saying that the sans battle theme would be a variant of stmpwyfs

sans the skeleton + Bonehead Brawl

Underswap - sans the skeleton + Bonehead Brawl

made this when i was kinda angry. not much else to say lol

Heat Of The Heartbeat

Ice Spikes

* UNDYNE stares you down.
* You cannot tell how they feel...
* All you can see is the blinding glow from their visor.
* ...
* But they do not see you.

Undyne sprite by NexTheSpriter:
www.deviantart.com/nexthespriter

Undyne design by The Snake:
https://soundcloud.com/fishtacularboi

030 - UNDYNE

collab with @sasterdadudester, @squeakep, @jedotime, @aytanner and @zerohpoint!

* Fuck you, mikey!

Primus!Underswapfell - Theoglamourbation's Rage Buster {Resastered} [Divided by Zero] (Tanned, v2)

Here is the Big Version 2. Have.
Credits:
Underswap By: Popcorn Pr1nce
Undertale By: Toby Fox
Song by: Me

Motifs:
sans.
MEGALOVANIA

{UNDERSWAP - Not really Official} sans - A Sans - Ular Spectacular Song V2

SO
I LIKE CANON UNDERSWAP A WHOLE LOT
but there arent many swaptrousles that actually fulfill popcorn's original idea for the sans theme!! ("stmp but different")
so!!! i decided to make one!!!!!
I'm really really REALLY proud of how it turned out along with the art!!!
also I reuploaded this bc the original upload had an exporting error hhhhh

Undertale by toby fox, Underswap by popcornpr1nce

How 'Ya Like Me Now? + THE SONG FOR MY BATTLE! [Canon!Underswap]

yo, i make things ig.
-------------------------------------------
My age: 15

Gender: Male

(i have too many names istg)

meh discord if you wanna chat or smth: bad#7393

(oh yeah, also i list things i work on for some reason)

{UNDERSWAP - Not really Official} sans - A Sans - Ular Spectacular Song V2

nub.ell