This is one of UGT Alike

Revealed Roleswaps:-
Aarch - Toriel
Berdly - Sans
Susie - Undyne
Noelle - Alphys
Parpal - Mettaton
Madsta - Asriel

Secret In Below OST

Replaces "sans."

Motifs:-
- Berdly

Roleswap: Berdly - Sans

Berdly

Replaces "Fallen Down"

Motifs:-
- Original

Roleswap: Aarch - Toriel

Fallen from Above?..

Replaces "Metal Crusher"

Motifs:-
- Ruins
- Ruins/Spear of Justice

Those Leitmotifs are technically mine btw

Roleswap: Parpal - Mettaton

Becoming The True Hero

Replaces "It's Showtime"

Motifs:-
- Ruins (Outro)

Roleswap: Parpal - Mettaton

Have No Fear, Parpy Is Here

Replaces "Memory"

Motifs:-
- Dummy! (Outro)

Roleswap: Madsta - Asriel

Memories... Flashbacks... Pasts...

Replaces "Alphys"

Motifs:-
- Girl Next Door

Roleswap: Noelle - Alphys

Noelle Holiday

Replaces "Undyne"

Motifs:-
- Vs. Susie

Roleswap: Susie - Undyne

Susie

Replaces "Another Medium"

Motifs:-
- Original
- OMORI - MERRY CD (by @tobyfox-music)
- Darkness Falls/Faint Courage [Modified]
- Beginner/Don't Forget