Cover of ???'s theme by Man on the Internet's Ann Nicole.
Edited by me.

My Innermost Apocalypse (The Binding Of Isaac) - Vocal Cover

Deltarune AU soundtrack by Nominal Dingus.
Edited by me.

DELTARUNE: Salt Route OST - Initiate Lethal Authority (Battle Theme)

I DO NOW OWN ANYTHING IN THIS SONG!! I just mixed this two songs cuz i found this cool and funny
Original cover : https://youtu.be/cQ7ShtPWAgk?si=uOuW1rI9exniySmA
Original remix : https://youtu.be/gCi2Ld04ZD8?si=oFRy_banKolozBpY

My Innermost Apocalypse with lyrics X My Innermost Apocalypse moonswirl remix

Unused boss battle theme from Mario - The Music Box by Team Ari.
Isolated and edited by me.

"A Flame Breath of Fresh Air" (BOWSER BOSS THEME) | Mario - The Music Box

Original song by marineflames.
Edited by me.

GOLDEN HOUR (DELTARUNE Fan Secret Boss Theme)

[deltarune: Chapter 5] WILTING KING (Fanmade Asgore Battle Theme)

Fantrack by CapitalistCrab.
Edited by me.

GO BEYOND - Deltarune Chapter 6 UST [W.D. Gaster Fight]

Remix made by leafcodes for an actual NES ROM Hack version of Deltarune Chapter 3's genocide route game. No spoilers for when it's used.
Instead, how about you play it yourself: https://drmelon.itch.io/mantle
Extracted and edited by me.

New tracks tagged #My Innermost Apocalypse