Kamen Rider Taisen Infinity

Kamen Rider Taisen Infinity is a crossover featuring Kamen Rider Shininja, Kamen Rider Century, and characters from the Digimon and Pokemon franchises

Synopsis
When monsters that aren't Shinobi no Hakaisha begin attacking Japan, Shinichi quickly realises he needs help. Not only that, but the DigiDestined quickly find that their leader, Davis, has become an entirely different person, as well as a Kamen Rider! Then, someone using the power of creatures known as Pokemon appears, and- guess what- he's a Kamen Rider! With all of this craziness happening, who will come out on top, the monsters or the Riders? Will the DigiDestined ever learn what happened to Davis? What are all these mentionings of a "purple Rider"? Find out in Kamen Rider Taisen Infinity!