Second playlist here. Moon makes a lot of songs, in case you haven't noticed.

First Playlist: https://soundcloud.com/epik-bruh/sets/all-moonster-songs

Moonstertale 2: Duality of Revolution

MoonStriker's underswap - Full OST

MK57

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* Mushroom dance
* Mushroom dance
* Mushroom dance
* Whatever could it mean

* It means you have some loose ends to tie up.
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* Shine on, warrior!
* HOPE sparkles around me.
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Undertale was created by Toby Fox
In an alternate universe, 'Underswap' was created by Temmie Chang
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Role swap list:
• Frisk - Chara
• Ragel - Flowey
• Toriel - Asgore
• Dummy - Mad Dummy
• Napstablook - Mettaton
• Sans - Papyrus
• Annoying Dog/Toby - Temmie
• Nice Cream Guy (Blue Ears) - Muffet
• Glyde - So Sorry
• Snowdin Shopkeeper (Q.C) & Snowdin Innkeeper - Hand Receptionist & Diamond Receptionist
• Grillby - Burgerpants
• Monster Kid - Asriel
• Undyne - Alphys
• Gerson - Gaster
• Riverperson - Father Alvin
• RG 01 & 02 - Dogamy & Dogaressa
• Catty & Bratty - The Warrior & Purple Guy
• Aaron - Froggit
• Moldbygg - Whimsun
• Woshua - Moldsmal
• Waterfall Shark (cut character) - Vegetoid
• Love Crab (cut character) - Migosp
• Shyren - Loox
• Vulkin - Snowdrake/Snowy
• Tsunderplane - Ice Cap
• Pyrope - Chilldrake
• Larpy - Doggo
• Cheerleader - Lesser Dog
• Asura (cut enemy that looked like an amalgamate of the RGs) and Bob - Greater Dog (Asura being the armor while Bob is the actual replacement) 
• Elephant Monster - Gyftrot
• Heats Flamesman - Snowman
• Clam Guy - Faun
• Snowdrake's Father - Hot Dog Vulkin
• Sleeping Monsters - Hot Dog Harpy
• Rabbit Kid - Diamond Boy 1
• Rabbit Girl & Cinnamon - Diamond Boy 2
• Gift Bear - Business Dude 1
• Politics Bear - Business Dude 2
• Scarf Mouse - Business Manticore
• Nacarat Jester - Shambling Mass
• Slime Family - Dragon Family
• The Person Behind the Door - The Hotel Resident
• Ice Wolf - Charles
• Library Lizard - Fish Receptionist
• Library Loox - MTT Resort Janitor
• Newspaper Editor 1 - Fuku Fire
• Newspaper Editor 2 - Skateboard Girl
• Big Mouth - Oni
• Drunk Bun - Fox Head
• Ugly Fish - Fickus Lickur
• Red Bird - Scared Donut Guy
• Punk Hamster - Dress Lion
• Echo Flowers - Talking Rocks
• Echo Flowers Explainer - Gaster Follower 3
• Loren - Gaster Follower 1
• Ferry - Small Bird
• Elder Puzzler - Gaster Follower 2
• Clam Girl - Briefcase Dude
• Onionsan - Grandpa Semi
• Goner Kid - Ralsei
• The Snails - MTT News/Cooking Show Items
• Madjick - Memoryhead
• Knight Knight - (Endogeny/Muttler)
• Final Froggit - Aaron (Lemon Bread)
• Whimsalot - Moldbygg (Lemon Bread)
• Astigmatism - Shyra (Lemon Bread)
• Lemon Bread - Reaper Bird
• Dragon Monster (cut character) - Crystal (Snowy's Mother)
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SOUL swap list:
• Determination - Hope [Switch SOUL] (additionally, it's using the split/double screen format like the Nintendo DS). There's an in-universe explanation for this too, which is that the split/double screen format works in a meta way, namely:
- Top screen represents Frisk: menu, map, guide, etc (this is because they are familiar with the world of monsterkind.)
- Bottom screen showcases Chara's adventure.
(Frisk and Chara are the two halves of the Split SOUL, kind of like a fusion, in a way)
• Patience - Bravery
• Integrity - Perseverance
• Kindness - Justice
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Area swap list:
• Ruins/New Home - Waterfall (The Sanctuary and New Hope)
• Snowdin Forest - Hotland (Vulkino and Snowcean) 
• Snowdin Town - MTT Resort (Vulkinyk City/Neon Mall and Frostover Town)
• True Lab - CORE (Abandoned Factory and Snowstorm Forest)
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Misc. swap list:
• 16-bit - 8-bit Pixel Art
• Speech Bubble - Dialogue Box
• Nintendo Soundfont - SEGA Soundfont
• Dummies - Conveniently-shaped Lamp
• Outer Space (Napstablook Hangout Scene) - Mettaton's Musical Scene/Dungeon Puzzle
• "Cooking With a Killer Robot" Scene - Thundersnail

Water Under the Bridge - Soundtrack

⬇Sorting and filling:
 •  Undyne (~15)
 •  Papyrus(~5)
 •  other UT characters (~10)
 •  non-UT characters (~5)

At the bottom of the playlist, a small number of new tracks may accumulate. Over time, I will sort them.

Battle Against a True Hero [UT + AU]

If you press "U", this leitmotif will play.
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Undertale was created by Toby Fox
In an alternate universe, 'Underswap' was created by Temmie Chang
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Leitmotif:
- Uwa!

☂ Ting-a-ling ☂

Name the fallen human
"FRISK".
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Undertale was created by Toby Fox
In an alternate universe, 'Underswap' was created by Temmie Chang
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Leitmotif:
- Ruins
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Yep, Frisk is still the first fallen human here! You play as Chara. On the other hand, "Determination" swaps with "Hope". Which means, "Hope" is the core trait of every human being. Chara benefits a lot of hope and possesses the soul of "Courage".

☂ An Empty Stream of Progress ☂

*It's a pile of blue glowing mushrooms.
*They must've softened your swift impact.
*Nowhere to go but forward.
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Undertale was created by Toby Fox
In an alternate universe, 'Underswap' was created by Temmie Chang
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Leitmotif:
- None
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Yep, this is the "wind" replacement. Additionally, Waterfall swaps with the Ruins, more specifically, the Garbage Dump swaps with the Starting Point and the mushrooms swap with the golden flowers. If you fall onto them, you'll find yourself in a beautiful and serene atmosphere of the sanctuary... well not when you're in the start of it since there'd be garbage all over the place. And just as importantly, have "faith" in yourself to the end!

☂ Waking up in the Garbage Dump ☂

*Long since, two races reigned over the EARTH: HUMANS and MONSTERS.
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Undertale was created by Toby Fox
In an alternate universe, 'Underswap' was created by Temmie Chang
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Leitmotif:
- Ruins(/Battle Against a True Hero)
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Since it's related to the intro, the barrier swaps with the gate entrance from the Ruins, and Mt. Ebott swaps with Mt. Emmett (which is actually real mountain if you search it up =P)Like Toby's old plan, Chara's going to seek for a refugee from a heavy rain outside, which explains why it'll be raining in the sanctuary. Chara will be donning a cute green raincoat and bring an umbrella as a... weapon.
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Third update! Remember the very first version of "Left in Ruins"? Yeah, this is a combination of the two which additionally uses genesis soundfont to stay consistent with the technical SEGA and Nintendo swap.

☂ Left in Ruins ☂

*if you want, you could also submit custom monsters.
*surely, everyone has the creativity to design them however they want.
*though that'll be $500 each.
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Undertale was created by Toby Fox
In an alternate universe, 'Underswap' was created by Temmie Chang
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Leitmotif:
- sans. (tuba)
- Nyeh Heh Heh/Bonetroulse (Part 1)

☂ just another sans' theme ☂

underswap, a game where a truly happy ending is possible! Only if you choose so.
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Undertale was created by Toby Fox
In an alternate universe, 'Underswap' was created by Temmie Chang
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Leitmotif:
- Ruins
- Song That Might Play When You Fight Sans
- It's Raining Somewhere Else

underswap - Putting a Little More 'Backbone' into It (Trailer)

A song to open a whole new chapter. An adventure has begun!
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Undertale and Deltarune was created by Toby Fox
In an alternate universe, Underswap and Warpedsun were created by Temmie Chang
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Leitmotif:
- An Ending/Ruins
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So I suppose this is basically the first introduction to WARPEDSUN, the deltarune replacement of the swap universe that I made. "Before the Story" plays for both games. And before we actually begin to posting WS tracks, WS is a team's AU (just like how Toby Fox made his own team for deltarune), meaning I won't be the only person to work on it. "What about PROSEMOOR?" Don't worry, I have a few songs done for PROSEMOOR and will continue uploading again later. On the other hand, WS swaps dark world with other dark world instead of just swapping characters all over again.

☂ A Beginning ☂

If you have any Moonstriker tracks that you would like to see on Soundcloud, DM me the link (either through Soundcloud messages or Discord [Bowser Man#9144])
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An "ASGORE" replacement for Rolled Cycle.

Motifs:
- Battle Against a True Hero
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Original release date: August 4, 2019
Server location: Doused Flames (discord.gg/VeRf27)
Source of Image: https://knowyourmeme.com/photos/1220257-undertale
Song by Moonster (@moonstrikefour)

[Undertale AU - Rolled Cycle] DAWN OF JUSTICE (WIP)

A PMD2 soundfont tune I wrote a while ago but only posted to twitter for some reason. It is VGM so it does loop.

Shaded Plateau

https://cdn.discordapp.com/attachments/987071928957272104/1178485363828863046/image.png?ex=65765105&is=6563dc05&hm=b0ac340470c87deddefb545d68550213e77995a930095884b7de894e0b6d451a&

Thumbnail by @Devin_Denizen
Inspired by GSO, Surreal and BobT.C. covers
hmmmmmmmm

BATTLE AGAINST THE WORLD

"UEE HEE HEE! SHARK-TO-SHARK! I WOULDN'T HAVE IT ANY OTHER WAY!
NOW, NOW!! LET THE GAMES BEGIN!!"
================================================
this one was really fun to make!!! hope you enjoy :)
deltarune by toby fox
art by me
flp by nini: https://youtu.be/HG1jkHP-LqQ?feature=shared

THE WORLD REVOLVING (nexus remix)

Original chiptune made for "The Grand Classist Tournament" on battleofthebits.com, hosted by Tex.

Razor's Edge [2A03+N163] (Razor Porcupine's Theme)

Thanks to @wichybitchy for the "Shower" name joke and @justthemoon for making the battle sprite and Chara

LET'S SEE HOW YOU CAN USE THAT POWER AGAINST MINE!

*Alphys NEO, 100 ATK 100 DEF
*"NEO" is widely known for its very high defense.
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Undertale was created by Toby Fox
In an alternate universe, 'Underswap' was created by Temmie Chang
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Leitmotif:
- SAVE the World
- Last Goodbye
- Final Power + Patience Soul/Your Best Friend (Baseline)
- SAVE the World/Hopes and Dreams (Part 3)
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Alphys' "Undying" form is her transforming into a big dragon (different from wyvern, I should tell you that) as she's part of the "Dragor" being that she's literally the underground's guardian.

☂ Shining Hope of a Warrior's Resolve ☂

Undying Wish ~ The Villain's Reckoning (DM Dokuro Undertale Battle Against A True Hero Remix)

original: https://soundcloud.com/angrysausage/toby-fox-undertale-2

Battle Against A True Hero (Cover)

This can be for any au you want (Undyne as Asgore only), provided you give credit to original creator of the song. Please ask beforehand.
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Leitmotives (In-order):
-Spear of Justice
-An Ending
-Alphys
-Bonetrousle
-Battle Against a True Hero

Couldn't find the image's source unfortunately.

[Swapspin/Twistedtale/Taleshift/An Undyne ASGORE] THE MOTHER WAVE

This can be for any au you want (Papyrus as Asgore only), provided you give credit to original creator of the song. Please ask beforehand.
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This song was requested by Reth-Vill15 (along with the motif choice): https://soundcloud.com/user-458203278
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Request list (Role-swap themes):
1̶.̶ ̶C̶h̶a̶r̶a̶!̶N̶a̶p̶s̶t̶a̶b̶l̶o̶o̶k̶ ̶-̶ ̶G̶h̶o̶s̶t̶ ̶F̶i̶g̶h̶t̶
2̶.̶ ̶P̶a̶p̶y̶r̶u̶s̶!̶A̶s̶g̶o̶r̶e̶ ̶-̶ ̶A̶S̶G̶O̶R̶E̶
3. Asriel!Mettaton - Metal Crusher
4. Fear the Undead V2
5. Corrupted Justice - Heartache Replacement (Alphys)
6. Alphys!Asgore - ASGORE
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Leitmotives (In-order):
-Bonetrousle + Trailertrousle (Modified)
-Lost Soul's Storyswap - "fractured feels.": https://soundcloud.com/lost-soul-official/owie-my-fweels-brov
-Storyswap Color - "March On!": https://soundcloud.com/mrepicishere777/march-on?in=mrepicishere777/sets/storyswap-color-ost
-Spooktune
-It's Showtime
-Determination

Source of Image: https://aminoapps.com/c/undertale/page/blog/king-papyrus/prXS_Qu4PGMRnLmYzkpKPanRW2m4Q5

[Storyswap/A Papyrus ASGORE] FACE THE POWER OF GLORY!

＊ Ｉ．．． ＵＮＤＹＮＥ．．．
(Thanks Awe-Sam for the name idea)

"Iron Will"【Battle Against a True Hero, Cover】

music block so idk what to make.

slightly inspired by @sabao_38's cover

UNDERTALE - Battle Against a True Hero (Cover)

All that remains of Hooda's account is here: @shiningcomet222

Hooda the Antagonist - Battle Against a True Hero (with Ridiculously High-Quality Instruments)

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This can be for any au want (Alphys as Asgore only), provided you give credit to original creator of the song. Please ask beforehand.
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Leitmotives (In-order):
-Alphys (Part 2 + Modified)
-Spear of Justice (+ NGAHH!!)
-Battle Against a True Hero (Part 3)
-Alphys (Part 3)/She's Playing a Piano
-Here We Are (Part 2)
-Death Report + It's Raining Somewhere Else

Source of Image: https://www.deviantart.com/insanelyadd/art/31DH7-Day-5-Queen-Alphys-857238468

[Undertale AU][An Alphys ASGORE] Misfit

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This can be for any au want (Undyne as Asgore only), provided you give credit to original creator of the song. Please ask beforehand.
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From now on, I'll be completing my ASGORE AUs playlist and then Heartache! So here, have an update to "THE MOTHER WAVE"
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Leitmotives (In-order):
-Spear of Justice
-Ruins/Waterfall
-Alphys
-Battle Against a True Hero/Spear of Justice

Source of Image: https://knowyourmeme.com/photos/1220257-undertale

[Undertale AU][An Undyne Bergen + ASGORE] This is Where It All Ends... + The Hero Of Monsterkind

* Mushroom dance
* Mushroom dance
* Mushroom dance
* Whatever could it mean

* It means you have some loose ends to tie up.

Undertale was created by Toby Fox
Underswap belongs to the community
However, somewhere in an alternate universe... Temmie was the creator of Underswap

In all seriousness, this is my take on Underswap.
You can call it Temmieswap, Moonswap, "underswap", or even lowercaseswap (thanks to Slick Silver)

Beforehand, this is in no way related to "Legend Behind the Chasm". That AU stays as an ambitious "Underswap-inspired" AU project with a particular Temmie's aesthetic. This is all the more the fun little reboot of my old "Temmieswap" official soundtracks. While this garners some of the canon/classicswap aspects, I've decided to add a little bit more of creativity and spice some things up, but not to point where it goes "very original" which is not what I'm aiming for. Roles might change in the future, but for now, it's still a heavily work in progress. And final note, I'll only swap "Undertale" motif with another "Undertale" motif. So there's no other Toby motifs, let alone Temmie's

Role swap list:
• Frisk - Chara
• Ragel - Flowey
• Toriel - Asgore
• Dummy - Mad Dummy
• Napstablook - Mettaton
• Sans - Papyrus
• Annoying Dog/Toby - Temmie
• Nice Cream Guy - Muffet
• Glyde - So Sorry
• Snowdin Shopkeeper & Innkeeper - Hand Receptionist & Diamond Receptionist
• Grillby - Burgerpants
• Monster Kid - Asriel
• Undyne - Alphys
• Gerson - Gaster
• Riverperson - Father Alvin
• 01 & 02 - Dogamy & Dogaressa
• Catty & Bratty - The Warrior & Purple Guy
• Patience - Bravery
• Integrity - Perseverance
• Kindness - Justice

Area swap list:
• Ruins/New Home - Waterfall
• Snowdin Forest - Hotland
• Snowdin Town - MTT Resort
• True Lab - CORE