Yummy

The Yummy are the underlings to the Greed serving as secondary antagonists.

Overview
The Yummy are monsters created by the Greed and serve as their subordinates. Like the Greed, they acquire a Medal by feeing off of Human lust and to become a complete animal-like being. Though before they acquire a medal, they assume a white mummy-like form called Blank Form (ブランク体, Buranku Tai). Their name is based off the Japanese word for darkness (闇, yami) and mummy (マミー, mamī).

Kamakiri
The Kamakiri Yummy (カマキリヤミー, Kamakiri Yamī) is a Yummy from the Insect Tribe created by Uva, whose body is completed by the Kamakiri Core Medal. The Kamakiri Yummy is the first Yummy that Kamen Rider Ooz encounters in his quest, and defeated by Ooz TaToBa Combo and the Medajalibur.