|This article is about a/an set of alternate forms in Kamen Rider Ryuki.|
Only Ryuki and Ouja's Blank Forms have been seen. Ryuki began the series in Blank Form before he contracted Dragredder, 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 Ryuki: Episode Final after Genocider was destroyed by Kamen Rider Ryuga.
Strangely, in the A.R. World of Ryuki arc in Kamen Rider Decade, the exclusive 14th Rider Abyss was not shown to revert to a Blank Form when his Contract Monster Abyssodon (the combination of Abysslasher and Abysshammer) was destroyed.