Underswap by MirrorRune!
(Music may not be in Undertale's OST order
Credits to Toby Fox for the Undertale)

MR!Underswap

* Once upon a time, there were two civilizations in the world — MONSTERS and HUMANS.
* They waged a war that lasted for centuries.
* The balance of power remained steady… until HUMANS struck a crushing blow to the MONSTERS.
* To stay safe, the monsters fled deep underground — and were never seen again… until one human appeared.
* “Mt. Rimor, Year 2025”
* One brave human decided to climb to the very top of the mountain.
* But after tripping on a rock, they fell into a deep, deep hole.
* Luckily, the flowers growing on the ground softened their fall.

1. In The Beginning

* A human has fallen... what's their name?

2. Menu

* hOii hUMAN!!
* i'M TemMIE, yO'R BESTESTEST fRAN!!! from now on.
* yOu seeeEM kinda lOST, huh??
* no WORRIES!! yO beSTEST frEND will teACH u HOW 2 FITE!!

3. hOii!

* Oh my goodness!
* Are you alright?
* That little creature didn’t hurt you, did it?
* Temmie can be… enthusiastic.
* (sigh)
* You must be confused.
* Come with me. It’s not safe to wander alone.
* I’ll keep you safe.

4. Fell Down

5. Ancient Home

72. Tune That Might Play When You Battle With Papyrus

Undertale by Toby Fox
Underswap interpretation by @https://soundcloud.com/mirrorrune
Sprites by @https://soundcloud.com/user-479101111

I create music with my own leitmotifs. I don't use Undertale leitmotifs in my interpretation. I still swap the characters like:

Chara <> Frisk
Asriel <> Monster Kid
Flowey <> Temmie
Toriel <> Asgore
Napstablook <> Mettaton
Sans <> Papyrus
Grillbys <> Muffet
Undyne <> Alphys

72. Tune That Might Play When You Battle With Papyrus

MR!UNDERSWAP