A chibi model from the Toei Company's Japanese tokusatsu drama Kamen Rider OOO series.
Chibi Kamen Rider OOO Papercraft

A card deck papercraft from the Japanese tokusatsu television series Kamen Rider Ryuki. This model has only a page of parts and is available in colors red and black.
Kamen Rider Ryuki Papercraft Card Deck

A cartoonish papercraft of Ryu Terui aka Kamen rider Accel, the main character in the Japanese TV series Kamen Rider. Model by Tafficraft.
Kamer Rider W Ryu Terui Papercraft

Kamen Rider Agito, is the eleventh installment in the popular Kamen Rider franchise. The series was shown on TV Asahi from January 28, 2001 to January 27, 2002.

Kamen Rider Agito Papercraft

Ongo Arts is back with an octagon container to put the SD Kamen Rider papercraft he released last month.
SD Kamen Rider Octagon Container Papercraft

Kamen Rider is a weekly science fiction story created by Japanese manga artist Shotaro Ishinomori that aired on April 3, 1971 until February 10, 1973. This SD model was designed by Ongo Arts.
SD Kamen Rider Papercraft

To save you the hassle of downloading them separately, Zakane has posted the complete set of Kamen Riders in one pack. They're composed of Decade, Diend, Accel, Fang and Double(Cyclone Joker).
PixelBlox Kamen Rider Papercraft