Note: Extra monsters with '*' are more of alternate forms or power increases

Earth Kaijus: http://www.furaffinity.net/view/32992277/

Legendary Godzilla https://wikizilla.org/wiki/Godzilla/Legendary

Kamoebas https://wikizilla.org/wiki/Kamoebas

Dagahra https://wikizilla.org/wiki/Dagahra

Gezora https://wikizilla.org/wiki/Gezora

*Super Godzilla https://wikizilla.org/wiki/Super_Godzilla_(Monster)

GDF Mechas: http://www.furaffinity.net/view/32948556/

Super X1 https://wikizilla.org/wiki/Super_X

Super X2 https://wikizilla.org/wiki/Super_X2

Super X3 https://wikizilla.org/wiki/Super_X3

Earth https://wikizilla.org/wiki/Earth_(ship) (Or I'll to call it Super X4 as this is the closest to another Super X besides going to Gotengo)

Alien Monsters: http://www.furaffinity.net/view/33015621/

Dogora https://wikizilla.org/wiki/Dogora

Monster X https://wikizilla.org/wiki/Monster_X

Gyaos https://wikizilla.org/wiki/Gyaos

Alien Mogura https://wikizilla.org/wiki/Moguera

*Hyper Mecha Ghidorah https://wikizilla.org/wiki/Hyper_Me.....-King_Ghidorah

Kaiju Mutants: http://www.furaffinity.net/view/33040220/

Gaira https://wikizilla.org/wiki/Gaira

Sanda https://wikizilla.org/wiki/Sanda

Krystalak https://wikizilla.org/wiki/Krystalak

Obsidius https://wikizilla.org/wiki/Obsidius