Cerberusmon

Cerberumon is an Ultimate Level Demon Beast Digimon that almost resembles the Cerberus. He's known in Cerberusmon in Bandai products.

Evolution

 * Fresh (Baby) - Paomon
 * Baby (In-Training) - Shaomon
 * Child (Rookie) - Labramon
 * Adult (Champion) - Seasarmon/Dobermon
 * Perfect (Ultimate) - Cerberumon
 * Ultimate (Mega) - Anubismon

Attacks

 * Hellfire (Emerald Blaze): shoots green fire out of his mouth
 * Inferno Gate (Portals of Darkness): opens a dark portal to his pocket dimension where he has the advantage.

Digimon Frontier
As one of the first Digimon encountered under the influence of Cherubimon, he attacked Fire Terminal and absorbed the Fractal Code for Fire Town while looking for something called a spirit. When Takuya Kanbara stumbled upon it while evading Cerberumon. He became Agunimon for the first time and battled him. Cerberumon had the advantage with the Portals of Darkness attack before being beaten and purified by Agunimon which reverted him to a Digi-Egg. Takuya used his D-Tector to release the Fractal Code which restored the village and the nearby area.
 * He's voiced by Fumihiko Tachiki(Japan).