The Full Shaggy mod OST maybe the Finale???
Download the mod on Game 
jolthttps://gamejolt.com/games/fnf-shaggy/643999
Thunder Storm by Saruky https://www.youtube.com/channel/UCKLD_M9TFSzgMTECZ6lcyrw
Dissasembler by Joan Atlas 
https://www.youtube.com/channel/UCraIAPdHnnkJxfapv8oRv0w

GOD EATER The Shaggy Mod OST: Chapter 3 Finale???

Dancing Cats - Go, Kitty, Go! + Nightcore

the amazing digital circus end theme slowed

sidechain fever (sped up)

Shoulder Boulder (But only the good part lmao)

Dark ambient soundscapes for your pleasure. Relax, chillout and enjoy.

the amazing digital circus end theme slowed

psaed