Cerberus was Darkusinfinity99's first Bakugan. Infinity found a young black dog one day, and it seemed hungry. Knowing he should do the right thing, he looked after it for a week. Then one day, a young man came, and told Infinity that he was lucky. The stranger told him that not everyone could tame Cerberus. Infinity had no idea what the stranger was talking about or who Cerberus was. The stranger simply threw a card into the air and vanished in a burst of light. Infinity noticed a card on the floor. Picking it up, he saw a Horridian-though he did not know it as a Horridian until paying more attentionto the picture- on the front. The dog came in and looked at the ability. The dog sat down and looked straight at it. The card then floated away from Infinity's hand, and landed directly next to the dog. The dog simply touched it, and vanished. In it's place was a Bakugan in sphere mode. It introuduced itself as Cerbeus, and thanked Infinity for taking care of it. Cerberus then joined Infinity and told him more about how he became a dog and about Bakugan.