TV series
Five descendants of the people showered with Bio Particles by Bio Robots five centuries in the past have become Biomen. They transform with the Bio Brace and fight using their Super Electronic Brains on their masks. Their Bioswords are equipped with sword and gun modes.
Availability
Choudenshi Bioman premiered February 4, 1984. We don't have a confirmed streaming, rental or purchase option yet.
Five descendants of the people showered with Bio Particles by Bio Robots five centuries in the past have become Biomen. They transform with the Bio Brace and fight using their Super Electronic Brains on their masks. Their Bioswords are equipped with sword and gun modes.
Choose an episode, then use the watch options above for the show.
Episode 1
An assault on a peaceful city of technology by the evil Doctor Man and the Neo Empire Gear awakens an ancient robot, who chooses five humans to awaken into becoming Bioman to face the mechanical invaders.
Directed by Nagafumi HoriWritten by Hirohisa SodaGuest stars Keiji Tsujii, Shinobu Shimura
Episode 2
Doctor Man sends Fara and Psygorn to pursue Mika Koizumi about Bioman, even though she had quit the team while the other members try to win her back onto their side.
Directed by Nagafumi HoriWritten by Hirohisa Soda
Episode 3
When Bio Robo becomes unexpectedly damaged during a battle with a Mecha-Gigan, Shirou tries to get a part needed for repair only to have the powerful Monster standing in his way.
Directed by Minoru YamadaWritten by Hirohisa Soda
Episode 4
Using Shirou's animal informants, Bioman discovers a Gear plot to replace humans with exploding Mecha Humans to sabotage a super-energy plant.
Directed by Minoru YamadaWritten by Hirohisa SodaGuest stars Daisuke Odera, Yasuhiro Fukuoka, Toyoki Shishikura, Motohiro Hozumi, Masako Tajima, Hiroshi Nakamura, Eri Ikeda, Yuuichi Hachisuka
Episode 5
In order to discourage people from indulging in a rain of coins created by an invisible Mecha Gigan controlled by Monster, Shingo decides to become a bad criminal to get the means to stop it.
Directed by Takafumi HattoriWritten by Hirohisa SodaGuest stars Yutaka Hirose, Hidekazu Kudo, Junko Kurahashi, Kazuhiro Uchima, Tsuyoshi Yamaguchi, Ryozo Mihara, Heihachiro Eda, Shinsuke Fujizawa
Episode 6
Mika's pursuit of a lead when a Mecha Gigant crash lands near a mountain leads her into a confrontation with Fara over a plot connected with a trap by Gear to stop Bio Robo.
Directed by Takafumi HattoriWritten by Hirohisa Soda
Episode 7
When Peebo discovers a letter from a friend from Bio, it inspires Doctor Man to start a plot involving making the robot believe that his friend has returned after 500 years.
Directed by Nagafumi HoriWritten by Hirohisa SodaGuest stars Shinobu Nakayama, Shinjiro Katagiri
Episode 8
As Peebo is forced to give up Bioman's secrets to Gear, the team rescues him as they decide to discover the harsh truth about Joy's ultimate fate.
Directed by Nagafumi HoriWritten by Hirohisa SodaGuest stars Shinobu Nakayama
Episode 9
Ryuuta becomes trapped within the dimension of a supercomputer by twin girl Mecha Humans being used to capture children for Gear.
Directed by Minoru YamadaWritten by Kunio FujiiGuest stars Kazuki Sakai, Enami Sakai
Episode 10
Doctor Man develops a gun devised of Anti-Bio Particles to destroy the Bio Particles within the Bioman, forcing Mika to make a move that may ultimately prove to be fatal!
Directed by Minoru YamadaWritten by Hirohisa Soda
Episode 11
After the passing of their teammate, Bioman search for a new Yellow4, all while they're pursued by a mischievous archer who doesn't realize what she's getting into.
Directed by Minoru YamadaWritten by Hirohisa Soda
Episode 12
Shingo begins to doubt himself when he believes that a Mecha-Human was actually the father of a boy he was trying to save.
Directed by Takafumi HattoriWritten by Kunio FujiiGuest stars Yoshitaka Suematsu, Yasuhiko Ishizu, Genyu Eguchi
Episode 13
Jun tries to figure a way to defeat Gear's newest upgrade on her own while the captain of the Olympic archery tracks her down to find out what happened to her.
Directed by Nagafumi HoriWritten by Hirohisa SodaGuest stars Hiroyuki Sanada, Masaaki Yana
Episode 14
When Doctor Man abandons a new Mecha Gigan-controlling super-computer that develops emotions, Hikaru tries to win it over with the concepts of love and empathy.
Directed by Nagafumi HoriWritten by Hirohisa SodaGuest stars Kazuyuki Sogabe
Episode 15
After being accused by Jun of not doing enough to stop a fungus being distributed by Gear, Hikaru puts it upon herself to find the means to stop their infection plans.
Directed by Minoru YamadaWritten by Kyōko SagiyamaGuest stars Miyuki Nagato, Hiroko Murano, Kumi Matsuoka, Hitomi Mikami, Yuichi Iwasaki, Motoyoshi Wada
Episode 16
Jun must reach a device that will cause a massive volcanic explosion in 6 hours time, but is distracted by Fara in preventing her from reaching that goal quickly.
Directed by Takafumi HattoriWritten by Hirohisa SodaGuest stars Masayuki Sugawara, Hiroshi Koyama, Mariko Yoshida, Yuko Naoshima
Episode 17
Doctor Man orders the abduction of a boy related to Urashima Taro, in hopes of using his ancestor's memory to find the treasures of the undersea utopia.
Directed by Minoru YamadaWritten by Hirohisa SodaGuest stars Suguru Matsukawa, Emiko Kure
Episode 18
Shingo encounters a girl who has strange visions of a Mecha Gigan attacking her town associated with a stone that gives her amazing gifts.
Directed by Minoru YamadaWritten by Kyōko SagiyamaGuest stars Rieko Saito, Yumi Kuroki, Sanae Kaneda, Shosaburo Katagiri
Episode 19
Doctor Man adds his 17-year old son to Gear as its new commander, with a cruelty that Ryuuta believes can be stopped.
Directed by Takafumi HattoriWritten by Hirohisa Soda
Episode 20
As the Bioman try to figure out how to deal with Prince and his Grotes Canth, Ryuuta tries to discover how to relate his own experiences in hopes of dealing with Doctor Man's son.
Directed by Takafumi HattoriWritten by Hirohisa SodaGuest stars Yorie Terauchi, Kentaro Ishizeki, Miki Shimamura
Episode 21
A Mecha-Human photographer set up by Monster takes control of an investigating Hikaru, forcing Jun to pick up where she left off in order to save her and discover the plan.
Directed by Minoru YamadaWritten by Kyōko SagiyamaGuest stars Atomu Kobayashi, Asao Matsumoto
Episode 22
When Ryuuta gets involved in returning a gold statue to its original owner, it becomes complicated when Fara sends out a Ryuuta Mecha-human to steal gold for Gear.
Directed by Minoru YamadaWritten by Hirohisa SodaGuest stars Junko Kawabata, Rikiya Iwaki, Teru Satō
Episode 23
Bioman must protect a runaway girl who ends up with a gemstone required by Gear to perfect their new super-weapon for causing global chaos.
Directed by Takafumi HattoriWritten by Kunio FujiiGuest stars Mako Niiyama
Episode 24
Shingo tries to protect the flowers of two children after Fara and a Mecha Gigan transform a field they cultivated for sale into bombs set to explode.
Directed by Takafumi HattoriWritten by Kyōko SagiyamaGuest stars Mina Sawai, Tadashi Chiga, Osamu Kimura
Episode 25
Shuichi Kageyama, a boy looking for his family, is attacked by Gear's forces as Doctor Man tries to confirm that he is actually his true long-lost son!
Directed by Minoru YamadaWritten by Hirohisa SodaGuest stars Kazuo Niibori, Yôhachi Shimada, Norio Matsui
Episode 26
As Doctor Man continues to pursue his son to join him, Shuichi receives a mysterious contact from his mother that leads to the revelation to him and Bioman of the truth regarding Gear's leader.
Directed by Minoru YamadaWritten by Hirohisa SodaGuest stars Kazuo Niibori, Takaya Hashi, Waka Satomi
Episode 27
Hikaru and Jun become trapped in a seaside town conquered by an army of mechanical spiders that control the populace.
Directed by Nagafumi HoriWritten by Kyōko SagiyamaGuest stars Koji Hoshino, Misa Kadoya, Jirō Sagawa, Hiroaki Ito
Episode 28
Realizing the trouble of Gear being ruled by a human, the Big Three decide to assassinate Doctor Man, leading to a loyal Mechaclone to try and reach a weapon in hopes of dealing with them.
Directed by Nagafumi HoriWritten by Hirohisa SodaGuest stars Yoshinori Okamoto
Episode 29
Trying to find a boy's lost brother, Ryuta discovers a Gear plot to suck Tokyo into multiple simultaneous black-hole bombs!
Directed by Takafumi HattoriWritten by Kyōko SagiyamaGuest stars Masahiro Kamiya, Shigehiro Mori, Akiharu Ikegami
Episode 30
Shirou becomes the fake fiancée of a swordmaker's daughter in order to prevent Monster from obtaining a sword for Doctor Man's final Mecha Gigan.
Directed by Takafumi HattoriWritten by Hirohisa SodaGuest stars Gen Takasugi, Aiko Tachibana
Episode 31
The Bioman face the Beastnoids in a showdown as a comet that interferes with their powers passes Earth, all while Doctor Man decides to unveil his new secret weapon.
Directed by Minoru YamadaWritten by Hirohisa Soda
Episode 32
As Bioman works on a new finisher for Bio Robo, Jun tries to help out a girl whose foot is run over by a car controlled by an upgraded Psygorn.
Directed by Minoru YamadaWritten by Hirohisa SodaGuest stars Masako Hirano, Yoko Kato, Hiroshi Kusano
Episode 33
Directed by Nagafumi HoriWritten by Hirohisa SodaGuest stars Toshiyasu Hiyoshi, Homare Hasegawa, Koichi Hasegawa, Masao Minamiya, Miki Kawashima
Episode 34
Directed by Nagafumi HoriWritten by Hirohisa SodaGuest stars Takaya Noguchi
Episode 35
Directed by Nagafumi HoriWritten by Hirohisa SodaGuest stars Hikaru Kurosaki
Episode 36
Directed by Nagafumi HoriWritten by Hirohisa SodaGuest stars Hikaru Kurosaki
Episode 37
Directed by Takafumi HattoriWritten by Hirohisa Soda
Episode 38
Directed by Takafumi HattoriWritten by Hirohisa Soda
Episode 39
Directed by Minoru YamadaWritten by Yū Yamamoto
Episode 40
Directed by Minoru YamadaWritten by Hirohisa SodaGuest stars Takeshi Katō, Mika Wakabayashi
Episode 41
Directed by Takafumi HattoriWritten by Kyōko SagiyamaGuest stars Noriko Hayashi, Mariko Oohara, Toshie Fukushima, Chinami Matsubara, Yuriko Nakabayashi, Kazue Itō, Nahomi Katagiri, Yasuhiro Fukuoka
Episode 42
Directed by Takafumi HattoriWritten by Takeshi NarumiGuest stars Yûzô Ogura
Episode 43
Directed by Nagafumi HoriWritten by Hirohisa SodaGuest stars Tokie Shibata
Episode 44
Directed by Nagafumi HoriWritten by Hirohisa SodaGuest stars Tokie Shibata
Episode 45
Directed by Minoru YamadaWritten by Kunio Fujii
Episode 46
Directed by Minoru YamadaWritten by Kyōko SagiyamaGuest stars Kazunori Ooshima
Episode 47
Directed by Minoru YamadaWritten by Hirohisa Soda
Episode 48
Directed by Takafumi HattoriWritten by Hirohisa Soda
Episode 49
Directed by Takafumi HattoriWritten by Hirohisa Soda
Episode 50
Directed by Minoru YamadaWritten by Hirohisa Soda
Episode 51
Directed by Minoru YamadaWritten by Hirohisa SodaGuest stars Waka Satomi, Takaya Hashi
Episode information updated Jul 26, 2026
Available now in United States
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