Here's a video clip from Kamen Rider OOO Episode 46 “The Eiji Greeed, the Double Births, and Ankh's Desire” which features the debut and fight between Eiji Greeed and the Complete Ankh.
With the addition of two Purple Medals from Doctor Maki, Eiji goes berserk and transforms into a full Greeed form. Furthermore, as a medal container, Ankh finally got a hold of his complete body.