|This article is about a/an episode in Chouriki Sentai Ohranger.|
The Formidable Enemy, Brain Machine (強敵 頭脳マシン Kyōteki Zunō Mashin) is the sixth episode of Chouriki Sentai Ohranger. It is the first of a two-part story giving backstory to Chief Counsellor Naoyuki Miura and introducing the first of the machines that will be utilized for the team mecha for the season.
A genius Machine Beast manipulates an incident from Miura's past in hopes of using it to find out intelligence on the new machines being built for the Ohranger.
Hysteria sent Bara Brain to target the Ohrangers’ Chief Miura. Using its psychic abilities, Brain extorted a painful memory of Miura’s. Years ago, Miura’s friend Endo and his daughter Mika fell over a seaside cliff. Miura grabbed them, but he could only save one. To save his daughter, Endo forced Miura to let go of him.
Bara Brain split into two entities, one of which was Bara Separate. The latter attacked OhRed, OhGreen and OhYellow. Meanwhile, Chief Miura and Mika were chased by Bara Brain. The enemy placed the girl under its thrall, and she captured Miura.
Bara Separate absorbed some cars and it turned into a giant monster. Momo and Yuji, inside a fighter jet, attacked the Takonpas and the Machine Beast. Bara Separate blasted the plane with its electrical beam.
On the rocky shore, the mind controlled Mika held Chief Miura captive. Bara Brain ordered Miura to divulge the location of the UAOH base.
OhBlue and OhPink rode their respective Chouriki Mobiles - Dash Leon and Moa Roader - back to the battle site. Unfortunately, the pair was unable to subdue Bara Separate.
- Goro Hoshino (星野 吾郎 Hoshino Gorō): Masaru Shishido (宍戸 勝 Shishido Masaru)
- Shouhei Yokkaichi (四日市 昌平 Yokkaichi Shōhei): Kunio Masaoka (正岡 邦夫 Masaoka Kunio)
- Yuji Mita (三田 祐司 Mita Yūji): Masashi Goda (合田 雅吏 Gōda Masashi)
- Juri Nijou (二条 樹里 Nijō Juri): Ayumi Hodaka (穂高 あゆみ Hodaka Ayumi)
- Momo Maruo (丸尾 桃 Maruo Momo): Tamao Satō (さとう 珠緒 Satō Tamao)
- Chief Counsellor Naoyuki Miura (三浦尚之参謀長 Miura Naoyuki-sanbōchō): Hiroshi Miyauchi (宮内 洋 Miyauchi Hiroshi)
- Emperor Bacchus Wrath (皇帝バッカスフンド Kōtei Bakkasu Fundo, Voice): Toru Ohira (大平 透 Ōhira Tōru)
- Empress Hysteria (皇妃ヒステリア Kougou Hisuteria, Voice): Minori Matsushima (松島みのり Matsushima Minori)
- Prince Buldont (皇子ブルドント Ōji Burudonto, Voice): Tomokazu Seki (関 智一 Seki Tomokazu)
- Butler Acha (執事アチャ Shitsuji Acha, Voice): Kaneta Kimotsuki (肝付兼太 Kimotsuki Kaneta)
- Butler Kocha (執事コチャ Shitsuji Kocha, Voice): Shinobu Adachi (安達忍 Adachi Shinobu)
- Bara Brain (バラブレイン Bara Burein, Voice): Kaneto Shiozawa (塩沢 兼人 Shiozawa Kaneto)
- Mitsuko: Kazuyo Nakatsubo (中坪和代 Nakatsubo Kazuyo)
- Mitsuko (Child): Momoko Yabe (矢部桃子 Yabe Momoko)
- Endo: Tetsu Masuda (益田てつ Masuda Tetsu)
- Viewership: 4.8%
- Chouriki Sentai Ohranger Volume 1 features episodes 1-12.
- The complete Ohranger series was released in North America by Shout! Factory in 2016.