Original Creators:
Sapheros
FuriousFox
CoatRack
Zipper
The Underground
ManimiFire
Lat'
Ors
Prime 2.0
Blade
Morph
Thompson
RedEnchilada
Chiri
Gaga Hax
JTE
GlideKS

Porters:
TheLastKitchenGun (TLKG)

Assets Used
Retro Bosses by MIDIMan
SRB2 The Past By Glaber & Multiple Others
Egg FrostBurn port by Antimodern 