Blank Form

is the default, incomplete form of the 22 Kamen Riders when they lack a Contract Monster. It is much weaker than their standard form, though it is enough to keep them from disintegrating in the Mirror World.
Only Hydra and Ouja (Final Judgment timeline)'s Blank Forms have been seen. Hydra began the series in Blank Form before he contracted Hydrareder, and he also reverted back to this form when his Contract Card was stolen by Kamen Rider Gai. Ouja was reverted to Blank Form in Kamen Rider Hydra: Final Judgment after Genocider was destroyed by Kamen Rider Darkdra.
Jaguar's Blank Form is shown as concept art in the book Kamen Rider Art Collection Chou Henshin.
Kamen Rider Hydra (Blank Form).png|Hydra Blank Form
KRRy-Ryukiblank.png|Ryuki Blank Form
KRRy-Oujablank.png|Ouja Blank Form
Kamen Rider Jagā (Blank Form).png|Jaguar Blank Form (concept art)
Strangely, in the A.R. arc in , the exclusive 14th Rider was not shown to revert to a Blank Form when his Contract Monster Abyssodon (the combination of Abysslasher and Abysshammer) was destroyed. 
Category:Rider Forms