Greeed

The Greed are animal-like kaijin and along with their subordinates the Yummy, they are the leading villains of Kamen Rider OOO.

Overview
The Greed appeared in the present timeline after a mysterious 800 year slumber. They are seperated into five tribes: a bird-like tribe, big cat tribe, insect tribe, a large mammal tribe, and an unknown tribe. They attack humans with their suboridinates so that they can feed off their desire and restore the missing portion of their body. When enough human desire is consumed the Greed their body is regrown and they get a medal and a new ability. With enough Medals they complete their bodies and become the Multi King.