|This article is about a/an episode in Kamen Rider Amazon.|
|Man or Beast? The Cool Guy Who Came From the Jungle!|
|Kamen Rider Amazon, Episode 1|
|Air date October 19, 1974|
|Written by Shou Daimon|
|Directed by Masaki Tsukada|
Ten-Faced Demon! God or Devil?
Man or Beast? The Cool Guy Who Came From the Jungle! (人か？野獣か？密林から来た凄い奴！ Hito ka? Yajū ka? Mitsurin Kara Kita Sugoi Yatsu!) is the first episode of Kamen Rider Amazon.
Daisuke Yamamoto, a young Japanese man raised in the wild Amazon jungle, is forced to become Kamen Rider Amazon to fight the Gedom, who are now eying Japan for conquest.
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- Amazon (Daisuke Yamamoto) (アマゾン (山本 大介) Amazon (Yamamoto Daisuke)): Tōru Okazaki (岡崎 徹 Okazaki Tōru)
- Masahiko Okamura (岡村 まさひこ Okamura Masahiko): Yōji Matsuda (松田 洋治 Matsuda Yōji)
- Ritsuko Okamura (岡村 りつ子 Okamura Ritsuko): Mariko Matsuoka (松岡 まりこ Matsuoka Mariko)
- Ten-Faced Demon Gorgos (十面鬼ゴルゴス Jūmenki Gorugosu, Voice): Ritsuo Sawa (沢 りつお Sawa Ritsuo)
- Narrator (ナレーター Narētā): Gorō Naya (納谷 悟朗 Naya Gorō)
- Elder Bago (長老バゴー Chōrō Bagō): Ushio Akashi (明石 潮 Akashi Ushio)
- Professor Taro Kosaka (高坂 太郎 教授 Kōsaka Tarō Kyōju): Yoshiro Kitahara (北原 義郎 Kitahara Yoshirō)
- Assistant Matsuyama (松山 助手 Matsuyama Joshu): Sei Hojo (北条 清 Hōjō Sei)
- Spider Beastman (グモ獣人 Kumo Jūjin, Voice): Kazuo Hayashi (林 一夫 Hayashi Kazuo)
- This episode premiered on the seventh birthday of actor Yōji Matsuda, who played Masahiko Okamura. In addition, the actress Shiho, who played Tomoko Nozama, named in homage to Amazon, in Kamen Rider Fourze, would be born on the 18th anniversary of this series premiere.
- Though none of the previous five Kamen Riders would appear in the series, Masahiko notes that Amazon is "like Kamen Rider" when he transforms, leading to him refering to Amazon's transformed state as "Amazon Rider" which would be used by other characters including the Ten-Faced Demon himself. Rider mentor Tobei Tachibana would appear two episodes later, while Amazon would not be seen fighting alongside his predecessors until the last episodes of his successor series Kamen Rider Stronger.
- Kamen Rider Amazon DVD Volume 1 features episodes 1-12.
- The complete Kamen Rider Amazon series was released in a Blu-ray boxset.