Kamen Rider Kamen Rider Episode 18 Fossil Man: Hitodanger ( Air Date 1971-07-31 ) Genre Action & Adventure, Sci-Fi & Fantasy, Drama category. Overview "Shocker creates a missile base in the mountains and appoints the monster Hitodanger to defend it. After saving a boy from a Shocker attack, he fights Hitodanger to save Taki who went searching for the base.".