I know its resistance, but i felt like adding the "AUNCE" cuz it sounded better to me.
This is the song of Le- RESISTAUNCE! A group of survivors from the undergrounds spread disease. Thanks to their spirit forms, they cannot be infected like the rest of the monsters.
Might make a discord for this, idk)

[UNDERTALE: TRUE MONSTERS] Le-RESISTAUNCE

flp by https://soundcloud.com/ghistofficial
original "BABA" https://soundcloud.com/ghistofficial/kruswap-baba

.:[kruswap] - BABA - [cover]:.

Spongetale by Keno! https://soundcloud.com/keno9988v-official/tracks

[SPONGETALE] Planktolo Strikes Back (Unfinished)

gentlemania

Underswap was created by Temmie Chang

This replaces "Start Menu"

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Leitmotif:
-Escaped Chasm (by Temmie Chang) - Title Screen

[Undertale AU][Underswap - Start Menu] Name Screen

The Quiet Water replacement for FracturedTale: Forgetting the Past. Link to the AU's Tumblr - https://fracturedtale-au.tumblr.com/. Link to AU's discord - https://discord.gg/SWazfaG

[FracturedTale] Silent Brooks

Original songs "Bergentrückung" & "ASGORE" by Toby Fox, sound effects from UNDERTALE
Voice clips by me

The Point of No Return + HENRICK

So, I got bored again, so I decided to make a cover of Humerus 1! Hope you enjoy! I don't know why teralovania second part is that loud, I don't know how to fix it, maybe you know...

Credits Time:

Humerus by BenyiC03
Undertale by Toby Fox
Underswap by Popc0rnPr1nce
Distrust by ???
Teralovania by BenyiC03

And that's all, see you soon! Thumbnail is coming sooner, don't worry!

There is a thumbnail

Humerus (Cover/Recreation v3)

Whipped up a little somethin' today. I think it sounds pretty good.

Sprite by Me (Sans is not of canon design, don't @ me).

[Underswap] Mweh heh heh! (V2) + Muscletussle

AU by: https://soundcloud.com/toadiedoesalltheworktbh

[[Wait, You Can't Cancel Christmas!] The Grinch Steals Back (FANMADE)

This track doesn't replace anything. It's where you fight Muffet & Grillby in Glacier Town on Genocide.

* This certainly will be a meal to die for.
Track by: https://soundcloud.com/spudward/tracks
https://docs.google.com/document/d/1FgESTGZ2mXsA5DziNAmRaJkiewjYgaq--UcOb4M3FgE/edit
Discord Server: discord.gg/2Rypmvz

A Meal To Die For

You still have no idea who I am... Ok some things about me, just a really busy 17 year-old guy who's spontaneously producing au tracks. I take requests ocassionally or when i have more free time. i work on many aus (including someone's au) and several UT fangames. I make roleswap au tracks a lot more than crossover ones. I mostly make death by glamours, battle against a true heroes, heartaches, and asgores because those are my favorites and really fun to make.

And here's my discord: MoonStriker#0730

QnA:

Q: Do you have any AU?
A: Yeah, I have: Rolled Cycle (Swapspin), Last Hope, and Underswitched. "Will I make songs for one of theses aus?" Someday, yeah. 
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Q: Can I use your musics for my au?
A: Sure! If the description of the certain music says that, then yes! I'm wary about Deltarune aus, though.
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Q: Do you have any song project?
A: I consider "Chara and Asriel swap" to be my primary music project. There's more such as "Chaos Kings" and "Doused Flames". Upcoming project might be "Toriel and Asriel Swap" or "Mettaton and Asgore Swap". I'm not sure, but you can decide which one too based on what you're interested with.
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Q: Do you take request?
A: Yes, but that depends or it'll take some time to actually do it.
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Q: What is your favorite UT music?
A: For battle theme: Battle against a True Hero goes to number one! Death by Glamour goes to second! And finally... ASGORE goes to third! Last but not least... Heartache or Spear of Justice? I don't know, both are on-par to me =P As for area theme, Waterfall and Another Medium for the win!

Source of Profile Picture's Image: https://quicksilver26.tumblr.com/post/148474219112/tokonbu-papyrus-and-sans-%E3%83%A1%E3%82%A4%E3%82%AD%E3%83%B3%E3%82%B0%E3%82%82%E3%81%A4%E3%81%91%E3%81%A6%E3%81%BF%E3%81%BE%E3%81%97%E3%81%9F

[Undertale AU][Underswap - Start Menu] Name Screen

MoonStrik3r