Season 1

1984 · 51 episodes · 17h 0m in all

1. Enigma Of The Giant Robot's Appearance
4 Feb 1984 · 20 min
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
11 Feb 1984 · 20 min
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
18 Feb 1984 · 20 min
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
25 Feb 1984 · 20 min
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
3 Mar 1984 · 20 min
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
10 Mar 1984 · 20 min
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
17 Mar 1984 · 20 min
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
24 Mar 1984 · 20 min
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
31 Mar 1984 · 20 min
Ryuuta becomes trapped within the dimension of a supercomputer by twin girl Mecha Humans being used to capture children for Gear.
10. Farewell, Yellow
7 Apr 1984 · 20 min
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
14 Apr 1984 · 20 min
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!
21 Apr 1984 · 20 min
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!
28 Apr 1984 · 20 min
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!
5 May 1984 · 20 min
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
12 May 1984 · 20 min
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
19 May 1984 · 20 min
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
26 May 1984 · 20 min
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
2 Jun 1984 · 20 min
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
9 Jun 1984 · 20 min
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!
16 Jun 1984 · 20 min
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
23 Jun 1984 · 20 min
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!
30 Jun 1984 · 20 min
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!
7 Jul 1984 · 20 min
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
14 Jul 1984 · 20 min
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?
21 Jul 1984 · 20 min
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
28 Jul 1984 · 20 min
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
4 Aug 1984 · 20 min
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
11 Aug 1984 · 20 min
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!?
18 Aug 1984 · 20 min
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
25 Aug 1984 · 20 min
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
1 Sept 1984 · 20 min
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
8 Sept 1984 · 20 min
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.
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33. Come Forth! New Certain Kill Technique
15 Sept 1984 · 20 min
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34. Behold The Power Of Bio!
22 Sept 1984 · 20 min
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35. Series Six Boy
29 Sept 1984 · 20 min
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36. Transform Boy
6 Oct 1984 · 20 min
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37. The Assassin Silver
13 Oct 1984 · 20 min
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38. The Riddle Of Balzion
20 Oct 1984 · 20 min
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39. Meison's Trap
27 Oct 1984 · 20 min
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40. To Steal Turbo
3 Nov 1984 · 20 min
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41. The Devilish Nursemaid
10 Nov 1984 · 20 min
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42. Gou! To Wager One's Destiny
17 Nov 1984 · 20 min
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43. Sailor Suited Warrior
24 Nov 1984 · 20 min
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44. Beautiful Conscience Circuit
1 Dec 1984 · 20 min
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45. Human Bomb Jun
8 Dec 1984 · 20 min
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46. Escape! Village Trap
15 Dec 1984 · 20 min
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47. Professor Shibata's True Colors
22 Dec 1984 · 20 min
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48. Enter Balzion
29 Dec 1984 · 20 min
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49. Fearful Bio Robot
5 Jan 1985 · 20 min
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50. Assault! Neograd
12 Jan 1985 · 20 min
51. Farewell, Peebo!
19 Jan 1985 · 20 min