Season 1

1. Enigma Of The Giant Robot's Appearance

1984-02-04 · 20m

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.

2. Gathering! Warriors Of Destiny

1984-02-11 · 20m

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.

3. Our Friend, Bio Robot

1984-02-18 · 20m

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.

4. Self Destruct! Mecha Humans

1984-02-25 · 20m

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

5. Kill the Unseen Enemy

1984-03-03 · 20m

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.

6. Rise Up! Bio Robo

1984-03-10 · 20m

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.

7. Captured Peebo

1984-03-17 · 20m

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.

8. Fight! Vow to the Planet

1984-03-24 · 20m

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.

9. The Jumprope That Erases People

1984-03-31 · 20m

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

10. Farewell, Yellow

1984-04-07 · 20m

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!

11. Enter, New Warrior Jun

1984-04-14 · 20m

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.

12. Murderer Green!

1984-04-21 · 20m

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

13. I'm Jun!

1984-04-28 · 20m

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.

14. Neo Intellect Brain!

1984-05-05 · 20m

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.

15. The Female Warrior's Flaming Oath

1984-05-12 · 20m

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.

16. Run, 21599 Seconds

1984-05-19 · 20m

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.

17. I Saw Ryugu Castle

1984-05-26 · 20m

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.

18. Super Powered Girl's Prayer

1984-06-02 · 20m

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

19. My Father Is Doctor Man

1984-06-09 · 20m

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

20. The Prince's Challenge!

1984-06-16 · 20m

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.

21. Protect The Bio Base

1984-06-23 · 20m

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.

22. A Great Burglar!? Blue!

1984-06-30 · 20m

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.

23. Gyo! Attack Of The Puppets!

1984-07-07 · 20m

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.

24. The Exploding Flower of Love

1984-07-14 · 20m

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.

25. Prince's Ghost?

1984-07-21 · 20m

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!

26. My Father's Dreadful Secret

1984-07-28 · 20m

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.

27. The Female Warriors Of Spider Hell

1984-08-04 · 20m

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

28. The Assassination of Doctor Man

1984-08-11 · 20m

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.

29. The Day Tokyo Disappeared!?

1984-08-18 · 20m

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

30. Ultimate Kans' Demon Sword

1984-08-25 · 20m

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.

31. New Model? Arrival Of Megas

1984-09-01 · 20m

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.

32. Gear's Great Tactics Reformation

1984-09-08 · 20m

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.

33. Come Forth! New Certain Kill Technique

1984-09-15 · 20m

34. Behold The Power Of Bio!

1984-09-22 · 20m

35. Series Six Boy

1984-09-29 · 20m

36. Transform Boy

1984-10-06 · 20m

37. The Assassin Silver

1984-10-13 · 20m

38. The Riddle Of Balzion

1984-10-20 · 20m

39. Meison's Trap

1984-10-27 · 20m

40. To Steal Turbo

1984-11-03 · 20m

41. The Devilish Nursemaid

1984-11-10 · 20m

42. Gou! To Wager One's Destiny

1984-11-17 · 20m

43. Sailor Suited Warrior

1984-11-24 · 20m

44. Beautiful Conscience Circuit

1984-12-01 · 20m

45. Human Bomb Jun

1984-12-08 · 20m

46. Escape! Village Trap

1984-12-15 · 20m

47. Professor Shibata's True Colors

1984-12-22 · 20m

48. Enter Balzion

1984-12-29 · 20m

49. Fearful Bio Robot

1985-01-05 · 20m

50. Assault! Neograd

1985-01-12 · 20m

51. Farewell, Peebo!

1985-01-19 · 20m