The Earth Imperial Beasts Dogglers (地帝獣ドグラー Chiteijū Dogurā?) are a tribe of underground creatures released from a freezing cave to fight the Maskmen. A few of the Dogglers possess the ability to split into two separate monsters: a humanoid Earth Imperial Doggler (地帝ドグラー Chitei Dogurā?) and a familiar called a Parasite (寄生獣 Kiseijū?).