The "Speed Demon" is from Pixelbit0 cause that is MobiusFell Sonic's theme. Anyways, heres the roles:

Painted Plummet Jaiden Sprite Sheet

Sprites by: Ellistandardbros at DeviantArt

when bad time, Animus start plays and a few seconds, you hear "You're disgrace, look what you've done."

Shifted Stars / Fallen Shift Overworld Chara and Asriel Sprite.

Sprites by: CARNO-POWER

hey guys heres my art

lookin' good, spongebob.

Hollow!NeoFreshSans

He's CORE!Frisk assistant.

done. Gildedguy and OwOdozer art. @Bonnieboi I think you know GildedGuy?

NeoFreshSans.exe / Bloody Fresh and Sonic.exe...

-

* You feel Neo has been possessed by Sonic.exe...

@Bonnieboi UwUdozer when Undertale-

Top: Colored.

Down: In-Battle

1. Neo!Sans Sprite: Done.

2.MG!Tale Sans(My Take): NOPE.