Ichigou Damashii empowers Ghost with the spirit of Kamen Rider 1 where he gains increased combat skills associated with the original Rider himself. This form's Omega Drive is a variation of Rider 1's two finishing moves, the Rider Punch and the Rider Kick. This form is featured in a special DVD-exclusive episode of the short video series Kamen Rider Ghost: Legendary! Riders' Souls!.
Ikkyu Damashii empowers Ghost with the spirit of the Japanese Zen Buddhist monk. This form is featured in the DVD special Kamen Rider Ghost: Ikkyu Intimacy! Awaken, My Quick Wit Power!! alongside Specter Pythagoras Damashii. It is also used by Dark Ghost in the film Kamen Rider Ghost the Movie: The 100 Eyecons and Ghost's Fated Moment.
Tenkatouitsu Damashii empowers Ghost with the spirits of the Japanese feudal lords: Oda Nobunaga, Toyotomi Hideyoshi, and Tokugawa Ieyasu. This form is featured in the film Kamen Rider Heisei Generations: Dr. Pac-Man vs. Ex-Aid & Ghost with Legend Rider.