Kamen Riders' Crossover Forms

These are Rider Forms assumed by Kamen Riders that feature elements outside of the Riders' native series.

Kamen Rider Decade

 * Decade is able to assume the form of various past Kamen Riders, for a full list see Kamen Rides. Both Decade and Diend's Complete Forms allow them to use the powers of past Riders as well.

Kamen Rider OOO

 * Kamen Rider OOO
 * Tamashii Combo (OOO, Den-O, All Riders: Let's Go Kamen Riders) *erased from existence due to restoration of original timeline.

Kamen Rider Drive

 * Kamen Rider Drive
 * Type Fruits (Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle)

Kamen Rider Ghost

 * -|Ghost=
 * Kamen Rider Ghost
 * Drive Damashii (Kamen Rider Ghost: Legendary! Riders' Souls!)
 * Gaim Damashii (Kamen Rider Ghost: Legendary! Riders' Souls!)
 * Kuuga Damashii (Kamen Rider Battle: Ganbarizing)