Kamen Rider - Season 3 Episode 11 The Invulnerable Water Snake Monster Hydra!
- Genre: Action & Adventure, Sci-Fi & Fantasy, Drama
- Studio: tv asahi, TBS, NET
- Keyword: artificial intelligence (a.i.), cyborg, martial arts, monster, hero, secret organization, villain, biker, superhero, tribe, conspiracy, swordsman, impostor, based on manga, motorcycle, erased memory, super power, masked superhero, supervillain, mysterious death, masked supervillain, death of hero, superhero teamup, mysterious disappearance, henshin heroes, friends to enemies, tokusatsu, kamen rider, evil dad
- Cast: Hidekazu Chinen, Yusuke Hino, Nozomi Miyabe, Takashi Tsukamoto, Machi Chitose, Ryo Takizawa