Kamen Rider is a popular Japanese media franchise created by Shotaro Ishinomori that began in 1971. It features a series of superhero television shows, films, and manga centered around masked heroes who transform to fight against various villains, often referred to as Kaijin or monsters. Each series typically follows a protagonist who gains special powers and a motorcycle, embodying themes of justice and heroism. The franchise has evolved over the years, introducing different characters and storylines, while maintaining its core elements. Kamen Rider has become a significant part of Japanese pop culture, inspiring merchandise, video games, and spin-offs, and has a dedicated fanbase both in Japan and internationally.