Choudenshi Bioman (Season 1)

Enigma Of The Giant Robot's Appearance (Episode 1)

Writer: Hirohisa Soda

Air date: 1984-02-04

Runtime: 20 min

Overview: 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.

Gathering! Warriors Of Destiny (Episode 2)

Writer: Hirohisa Soda

Air date: 1984-02-11

Runtime: 20 min

Overview: 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.

Our Friend, Bio Robot (Episode 3)

Writer: Hirohisa Soda

Air date: 1984-02-18

Runtime: 20 min

Overview: 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.

Self Destruct! Mecha Humans (Episode 4)

Writer: Hirohisa Soda

Air date: 1984-02-25

Runtime: 20 min

Overview: Using Shirou's animal informants, Bioman discovers a Gear plot to replace humans with exploding Mecha Humans to sabotage a super-energy plant.

Kill the Unseen Enemy (Episode 5)

Writer: Hirohisa Soda

Air date: 1984-03-03

Runtime: 20 min

Overview: 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.

Rise Up! Bio Robo (Episode 6)

Writer: Hirohisa Soda

Air date: 1984-03-10

Runtime: 20 min

Overview: 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.

Captured Peebo (Episode 7)

Writer: Hirohisa Soda

Air date: 1984-03-17

Runtime: 20 min

Overview: 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.

Fight! Vow to the Planet (Episode 8)

Writer: Hirohisa Soda

Air date: 1984-03-24

Runtime: 20 min

Overview: 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.

The Jumprope That Erases People (Episode 9)

Writer: Kunio Fujii

Air date: 1984-03-31

Runtime: 20 min

Overview: Ryuuta becomes trapped within the dimension of a supercomputer by twin girl Mecha Humans being used to capture children for Gear.

Farewell, Yellow (Episode 10)

Writer: Hirohisa Soda

Air date: 1984-04-07

Runtime: 20 min

Overview: 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!

Enter, New Warrior Jun (Episode 11)

Writer: Hirohisa Soda

Air date: 1984-04-14

Runtime: 20 min

Overview: 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.

Murderer Green! (Episode 12)

Writer: Kunio Fujii

Air date: 1984-04-21

Runtime: 20 min

Overview: Shingo begins to doubt himself when he believes that a Mecha-Human was actually the father of a boy he was trying to save.

I'm Jun! (Episode 13)

Writer: Hirohisa Soda

Air date: 1984-04-28

Runtime: 20 min

Overview: 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.

Neo Intellect Brain! (Episode 14)

Writer: Hirohisa Soda

Air date: 1984-05-05

Runtime: 20 min

Overview: 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.

The Female Warrior's Flaming Oath (Episode 15)

Writer: Kyōko Sagiyama

Air date: 1984-05-12

Runtime: 20 min

Overview: 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.

Run, 21599 Seconds (Episode 16)

Writer: Hirohisa Soda

Air date: 1984-05-19

Runtime: 20 min

Overview: 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.

I Saw Ryugu Castle (Episode 17)

Writer: Hirohisa Soda

Air date: 1984-05-26

Runtime: 20 min

Overview: 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.

Super Powered Girl's Prayer (Episode 18)

Writer: Kyōko Sagiyama

Air date: 1984-06-02

Runtime: 20 min

Overview: Shingo encounters a girl who has strange visions of a Mecha Gigan attacking her town associated with a stone that gives her amazing gifts.

My Father Is Doctor Man (Episode 19)

Writer: Hirohisa Soda

Air date: 1984-06-09

Runtime: 20 min

Overview: Doctor Man adds his 17-year old son to Gear as its new commander, with a cruelty that Ryuuta believes can be stopped.

The Prince's Challenge! (Episode 20)

Writer: Hirohisa Soda

Air date: 1984-06-16

Runtime: 20 min

Overview: 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.

Protect The Bio Base (Episode 21)

Writer: Kyōko Sagiyama

Air date: 1984-06-23

Runtime: 20 min

Overview: 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.

A Great Burglar!? Blue! (Episode 22)

Writer: Hirohisa Soda

Air date: 1984-06-30

Runtime: 20 min

Overview: 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.

Gyo! Attack Of The Puppets! (Episode 23)

Writer: Kunio Fujii

Air date: 1984-07-07

Runtime: 20 min

Overview: 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.

The Exploding Flower of Love (Episode 24)

Writer: Kyōko Sagiyama

Air date: 1984-07-14

Runtime: 20 min

Overview: 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.

Prince's Ghost? (Episode 25)

Writer: Hirohisa Soda

Air date: 1984-07-21

Runtime: 20 min

Overview: 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!

My Father's Dreadful Secret (Episode 26)

Writer: Hirohisa Soda

Air date: 1984-07-28

Runtime: 20 min

Overview: 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.

The Female Warriors Of Spider Hell (Episode 27)

Writer: Kyōko Sagiyama

Air date: 1984-08-04

Runtime: 20 min

Overview: Hikaru and Jun become trapped in a seaside town conquered by an army of mechanical spiders that control the populace.

The Assassination of Doctor Man (Episode 28)

Writer: Hirohisa Soda

Air date: 1984-08-11

Runtime: 20 min

Overview: 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.

The Day Tokyo Disappeared!? (Episode 29)

Writer: Kyōko Sagiyama

Air date: 1984-08-18

Runtime: 20 min

Overview: Trying to find a boy's lost brother, Ryuta discovers a Gear plot to suck Tokyo into multiple simultaneous black-hole bombs!

Ultimate Kans' Demon Sword (Episode 30)

Writer: Hirohisa Soda

Air date: 1984-08-25

Runtime: 20 min

Overview: 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.

New Model? Arrival Of Megas (Episode 31)

Writer: Hirohisa Soda

Air date: 1984-09-01

Runtime: 20 min

Overview: 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.

Gear's Great Tactics Reformation (Episode 32)

Writer: Hirohisa Soda

Air date: 1984-09-08

Runtime: 20 min

Overview: 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.

Come Forth! New Certain Kill Technique (Episode 33)

Writer: Hirohisa Soda

Air date: 1984-09-15

Runtime: 20 min

Behold The Power Of Bio! (Episode 34)

Writer: Hirohisa Soda

Air date: 1984-09-22

Runtime: 20 min

Series Six Boy (Episode 35)

Writer: Hirohisa Soda

Air date: 1984-09-29

Runtime: 20 min

Transform Boy (Episode 36)

Writer: Hirohisa Soda

Air date: 1984-10-06

Runtime: 20 min

The Assassin Silver (Episode 37)

Writer: Hirohisa Soda

Air date: 1984-10-13

Runtime: 20 min

The Riddle Of Balzion (Episode 38)

Writer: Hirohisa Soda

Air date: 1984-10-20

Runtime: 20 min

Meison's Trap (Episode 39)

Writer: Yū Yamamoto

Air date: 1984-10-27

Runtime: 20 min

To Steal Turbo (Episode 40)

Writer: Hirohisa Soda

Air date: 1984-11-03

Runtime: 20 min

The Devilish Nursemaid (Episode 41)

Writer: Kyōko Sagiyama

Air date: 1984-11-10

Runtime: 20 min

Gou! To Wager One's Destiny (Episode 42)

Writer: Takeshi Narumi

Air date: 1984-11-17

Runtime: 20 min

Sailor Suited Warrior (Episode 43)

Writer: Hirohisa Soda

Air date: 1984-11-24

Runtime: 20 min

Beautiful Conscience Circuit (Episode 44)

Writer: Hirohisa Soda

Air date: 1984-12-01

Runtime: 20 min

Human Bomb Jun (Episode 45)

Writer: Kunio Fujii

Air date: 1984-12-08

Runtime: 20 min

Escape! Village Trap (Episode 46)

Writer: Kyōko Sagiyama

Air date: 1984-12-15

Runtime: 20 min

Professor Shibata's True Colors (Episode 47)

Writer: Hirohisa Soda

Air date: 1984-12-22

Runtime: 20 min

Enter Balzion (Episode 48)

Writer: Hirohisa Soda

Air date: 1984-12-29

Runtime: 20 min

Fearful Bio Robot (Episode 49)

Writer: Hirohisa Soda

Air date: 1985-01-05

Runtime: 20 min

Assault! Neograd (Episode 50)

Writer: Hirohisa Soda

Air date: 1985-01-12

Runtime: 20 min

Farewell, Peebo! (Episode 51)

Writer: Hirohisa Soda

Air date: 1985-01-19

Runtime: 20 min