|This article is about a/an episode in Kamen Rider, the original series.|
Tokageron and the Big Monster Army (トカゲロンと怪人大軍団 Tokageron to Kaijin Dai Gundan), is the thirteenth episode of the original Kamen Rider series. This episode is Hongo's last appearance until episode 40, and it had a theatrical showing as Go Go Kamen Rider, the first ever Kamen Rider movie.
Resurrected Shocker monsters fail to break into a research lab because of its protective barrier. They create a new monster, Tokageron, to have one powerful enough to use a new weapon to destroy the barrier.
Resurrected Bat Man and Scorpion Man fail to infiltrate an Atomic Energy Research Lab because it's protected by an electric barrier. Hearing this the Leader orders their scientists to deploy their "Barrier Destruction Ball." Because of its weight and area of effect, however, such a weapon can't presently be used by any of Shocker's monsters. They identify arrogant soccer player Ken Nomoto whose phenomenal kicking power makes him an ideal subject for the new monster they need to use the Barrier Destruction Ball. Shocker's resurrected monsters are sent to capture him, and once he's in their clutches Ken is modified into the monster Tokageron.
- Takeshi Hongo (本郷 猛 Hongō Takeshi): Hiroshi Fujioka (藤岡 弘 Fujioka Hiroshi)
- Tobee Tachibana (立花 藤兵衛 Tachibana Tobee): Akiji Kobayashi (小林 昭二 Kobayashi Akiji)
- Ruriko Midorikawa (緑川 ルリ子 Midorikawa Ruriko): Chieko Morigawa (森川 千恵子 Morigawa Chieko) (Played as Chieko Maki (真樹 千恵子 Maki Chieko))
- Hiromi Nohara (野原 ひろみ Nohara Hiromi): Yōko Shimada (島田 陽子 Shimada Yōko)
- The Great Leader of Shocker (ショッカー首領 Shokkā Shuryō, Voice): Gorō Naya (納谷 悟朗 Naya Gorō)
- Narrator (ナレーター Narētā): Shinji Nakae (中江 真司 Nakae Shinji)
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- This episode was the last appearance of Takeshi Hongo/Kamen Rider One until episode 40 because Hiroshi Fujioka fractured his leg during a motorcycle stunt gone wrong a few episodes prior. He returned to the show after his injuries had healed.
- Footage from this episode, featuring Hongo's fight with Lizardlon and his revived monsters, is featured as part of Tobei Tachibana's retrospective in episode 27 of Kamen Rider X.
- Kamen Rider DVD Volume 2 features episodes 8-13.
- Kamen Rider Blu-ray Volume 1 features episodes 1-26.