The Kaiju that appeared in the 3rd installment to Takara’s Magne-Robo Franchise, Magne Robo Gakeen.
They are called Synthetic Beasts (合成獣 Gōsei-jū) and are created by the Izaru people by synthesizing two organisms together.
Bardos
Octos
Octocrab
Gancha
Bagudaniya
Rodoges
Gordon
Zambu
Tsuchinogon
Bulldogger
Telepoth
Battoge
Kamegama
Eregos
Hyoma
Kyuban
Tagamen
King Bear
Death Shark
Arinbee
Mogul
Hurricane
Agiras
Death Garian
Kagebat
Black Wing
Harinezugai
Gaikabuto
Wanigas
Mirus
Mirus(without the bandages)
Hachirasu
Shachigera
Mukadejigoku
Nisegakeen
Musasabi
Bison Kong
Machaei
Dodoro
Gyazan
General Commander of Brain
Doragan
Izaru Genjin
Mantora
Finaru
Izaru the Emperor