Gyro

Gyro is a member of the Gamma holding the title of Gamma Ultima and the former instructor of Alain. He is a major antagonist in Kamen Rider Ghost.

History
Gyro was sent to the human world by Adel, where he confronted Alain. Stating that he would teach him again, Gyro assumed his Gamma Ultima form and engaged Kamen Rider Ghost Boost Damashii, Kamen Rider Specter Nobunaga Damashii and Kamen Rider Necrom Grimm Damashii, managing to fight all of them off. After repelling and reversing a Triple Rider Kick, the three Kamen Riders made their retreat.

Gyro later requested to Adel that he be allowed to fight Ghost in his Mugen Damashii form. Adel granted Gyro's request and the Gamma Ultima went to fight Takeru once again. However, rather than use his Mugen Damashii, Takeru assumed his Ore Damashii, not wanting to only rely on Mugen Damashii. Takeru was easily defeated by Gyro, who insisted he use Mugen Damashii, but Takeru continued to refuse. However, Ghost was soon rejoined by the heroic Ghost Eyecons, and assumed Ghost Grateful Damashii before defeating Gyro with a Mega Omega Formation, shattering his Gamma body.

Gyro was later revived by Takeru's wish and turned away from the Gamma ideology.