OST 72


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RoyalRoulette its an Undertale au, the main changes are role swaps, a lot of them, though there's other changes i'll reveal on the go.

Gaster hacks into Snow-Y body, controlling it so you cannot get away.

To spare, you'll have to reverse engineer Gaster's hacking and let Crystal take control back.

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UT OST Equivalent: Can You Really Call This A Hotel, I Didn't Receive A Mint On My Pillow Or Anything

Leitmotifs and melodies:
- Gaster's Theme
- Amalgam

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Role ----- Replacement
Frisk --- The Cyan soul [Marcy]
Mettaton Cook --- Snowy Amalgam (Crystal)

How Could You Make An Undertale Au Soundtrack Without At Least One Song Having An Unnecessarily Long Name Given That It Only Plays Once

OST 87

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RoyalRoulette its an Undertale au, the main changes are role swaps, a lot of them, though there's other changes i'll reveal on the go.

After the whole Undyne ordeal, you invade the Dummies' Home to find out what it wanted in that palace in the first place.

They explain that, their plan was to leave you to deal with Undyne while they took some materials to make something for a friend, and what that something is, they can't say.

But realizing you'll go to the CORE, they begin a "practice fight" to show you something you'll see inside, the last soul mode, MIRROR MODE (based on the switch only soul mode), pretty self explanatory.
The Dummy can replicate the magic the security in the CORE uses with stolen materials from the palace.

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UT OST Equivalent: None

Leitmotifs and melodies:
- Anticipation (Normal & Modified)
- Original (MTB Brand Theme)
- Spooktune

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Role ----- Replacement
Frisk --- The Cyan soul [Marcy]
Monster kid --- Ruins Dummy
Flowey --- Mad Dummy
Toriel --- Napstablook

Haunted House

OST 88

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RoyalRoulette its an Undertale au, the main changes are role swaps, a lot of them, though there's other changes i'll reveal on the go.

The CORE awaits.

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UT OST Equivalent: CORE Approach

Leitmotifs and melodies:
- Flashback (Deltarune Weird Route)

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Role ----- Replacement
Frisk --- The Cyan soul [Marcy]

Above The Machine

OST 89

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RoyalRoulette its an Undertale au, the main changes are role swaps, a lot of them, though there's other changes i'll reveal on the go.

The CORE song, nothing else here.

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UT OST Equivalent: CORE

Leitmotifs / Sounds: 
- CORE

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Role ----- Replacement
Frisk --- The Cyan soul [Marcy]

Machination

OST 90

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RoyalRoulette its an Undertale au, the main changes are role swaps, a lot of them, though there's other changes i'll reveal on the go.

The CORE, the great machine that powers the entire Underground, filled with traps, mechanisms and security. Descending this monstrous structure will be no easy task, but you take the Doctor's challenge.

Just like in Undertale, the CORE's soundtrack doubles as its battle track, the enemies are enhanced versions of some previous threats from throughout your journey, along with some new ones, like Knight Knight and Migospell.

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UT OST Equivalent: CORE

Leitmotifs and melodies:
- CORE
- Scarlet Forest (Modified)
- Snowy/Shop
- His Theme
- Black (Homestuck)
- Sewers (Earthbound Halloween Hack)
- Original (A La Parrilla)
- Patient
- Gaster's Theme

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Role ----- Replacement
Frisk --- The Cyan soul [Marcy]

THE CORE

OST 91

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RoyalRoulette its an Undertale au, the main changes are role swaps, a lot of them, though there's other changes i'll reveal on the go.

Inside the CORE, memories buried deep down call your name, almost being able to hear them, see them, but, this darkness is still not enough, something else must've been done.

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UT OST Equivalent: Uwa!! So HEATS!!♫ (core)

Leitmotifs and melodies:
- Yellow Soul 'Your Best Nightmare' section
- Patient

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Role ----- Replacement
Frisk --- The Cyan soul [Marcy]
Chara ---

JUSTICE

OST 92

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RoyalRoulette its an Undertale au, the main changes are role swaps, a lot of them, though there's other changes i'll reveal on the go.

Travelling through the CORE, almost hiding on the calmest place inside, MTB seems to have taken refuge there.
You two proceed to have a small talk, discussing most importantly, how close you are to getting out from the Underground.

Depending on some of your previous actions, MTB will have certain remarks and comments, in any case, with a (metaphorical) smile.

"The end is closer than ever anyway, isn't it?"

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UT OST Equivalent: It's Raining Somewhere Else

Leitmotifs / Melodies:
- Hotel
- For The Fans
- Death By Glamour
- CORE
- Oh! One True Love

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Role ----- Replacement
Frisk --- The Cyan soul [Marcy]
sans --- MTB (Mettaton)

The Sun Shines Out There

OST 93

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-[MTB]: I hope you make the right decision.
-[Gaster]: THE WORLD NEEDS IT
-[][][][][]: *Why do i have to do this...

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RoyalRoulette its an Undertale au, the main changes are role swaps, a lot of them, though there's other changes i'll reveal on the go.

The last stretch of The CORE, inching closer to the end with each step, a quiet, long corridor.

But you are not alone, not right now, MTB follows close behind, trying to say goodbye, to maybe convince you to stay, or perhaps the opposite.
He wonders what the future will bring to monsterkind, what will happen if you achieve your freedom, or they get theirs back.

Throught the various screens around the hallway, Dr. Gaster monologues about his plan, to make things right, to redeem his name, to gift monsterkind what they were robbed from.
Promising a bright future for his people, and for himself, the peace he longs for.

There's a third voice, only you can hear, the voice of who you've been guiding, questioning their own actions, trying to justify why they want to leave, after all, they deserve to be up there, but...  wouldn't mosnters deserve that too?

Regardless, you must push forward, and never look back.
 
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UT OST Equivalent: Undertale

Leitmotifs / Melodies:
- Oh My...
- Gaster's Theme
- Metal Crusher
- Happy Town
- THE DOCTOR (Modified Another Medium)
- Meat Factory

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Role ----- Replacement
Frisk --- The Cyan soul [Marcy]
sans --- MTB (Mettaton)
Alphys --- Dr. Gaster

Roulette Of Fate

OST 94

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RoyalRoulette its an Undertale au, the main changes are role swaps, a lot of them, though there's other changes i'll reveal on the go.

Standing in front of the entrance to HOME, the door is locked tightly.

Flowey appears, and against the Monarch's wishes, he tells you how to open this door, throught a switch hidden back in the long hallway.

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UT OST Equivalent: Small Schock / The Choice

Leitmotifs / Melodies:
- Once Upon A Time

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Role ----- Replacement
Frisk --- The Cyan soul [Marcy]
PAPYRUS --- Flowey

Quiet Entrance

OST 95

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RoyalRoulette its an Undertale au, the main changes are role swaps, a lot of them, though there's other changes i'll reveal on the go.

After pressing the secret switch, you are suddenly ambushed by the final obstacle, The Reaper.

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UT OST Equivalent: Bergentrückung

Leitmotifs / Melodies:
- Amalgam

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Role ----- Replacement
Frisk --- The Cyan soul [Marcy]
NEO --- Reaper Bird

The Darkness Itself

Wowzers!
The next rest of the songs will be on:

https://soundcloud.com/royal-roulette-part-2

It's still empty but its to make sure everyone knows where it is.



Thank you so much to the people that listen to these silly songs!

[song is just the justice YBN section and Patient]

This au needs more songs! Announcement or something.

RoyalRoulette its an Undertale au, the main changes are role swaps, a lot of them, though there's other changes, like areas being quite different, and the biggest change being the order of events.

How Could You Make An Undertale Au Soundtrack Without At Least One Song Having An Unnecessarily Long Name Given That It Only Plays Once

ROYAL ROULETTE