|Monster Name||First Movie Appearence||First Video Game Appearence|
|Battra||Godzilla VS Mothra||Super Godzilla|
|Biollante||Godzilla VS Biollante||Super Godzilla|
|Destoroyah||Godzilla VS Destoroyah||Godzilla: Destroy All Monsters Melee|
|Megaguirus||Godzilla VS Megaguirus||Godzilla: Save The Earth|
|Space Godzilla||Godzilla VS Space Godzilla||Godzilla: Giant Monster March|
|Titanosaurus||Terror Of Mechagodzilla||Battle Soccer|
The Mutant Faction is a group of monsters who are being awakened by the crystal growth in Godzilla: Unleashed.Biollante was awakened by the floods caused by tsunamis in Tokyo.Krystalak was awakened by the meteor shower in New York City.Megaguirus was awakened by the anti-gravity vortex in London.Obsidius was awakended by the volcanoes erupting in Seattle.Titanosaurus was awakened by the frozen wasteland of Sydney.Space Godzilla leads the Mutants on their quest to destroy Earth.Battra is only in the PlayStation 2 version of Godzilla: Unleashed,while Biollante,Krystalak,and Titanosaurus only appeared in the Nintendo Wii version.