Kamen Rider W makes a return with more memories, around 99 to be exact packed within the Complete Selection Light and Darkness of Fuuto set. This unique Gaia Memory can be found in said set and could considered the Fang Memory for Dopants, and once again k2eizo provides our video demonstration of this roleplay toy. 

Putting this memory into prospective: The Zoo Memory made an appearance in the Kamen Rider W: The One Who Comes After Z novel. In the novel, Shotaro catches a cold so Phillip substitutes. Initially using FangJoker to fight, but Shotaro has a hard time keeping up and his condition worsens. Shroud gives Phillip a Lost Driver and he fights against the Dopants as Kamen Rider Cyclone.