The Enigmatic Giant Robo ArrivesAn 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
第2話
Gathering! Warriors of DestinyDoctor Man sends Farrah 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 Robo
第3話
Our Friend, Bio RoboWhen 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
第4話
Self Destruct! Mecha-HumansUsing 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
第5話
Kill the Unseen EnemyIn 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
第6話
Rise Up! Bio RoboMika's pursuit of a lead when a Mecha-Gigan crash lands near a mountain leads her into a confrontation with Farah over a plot connected with a trap by Gear to stop Bio Robo.
Captured Peebo
第7話
Captured PeeboWhen 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
第8話
Fight! Vow to the PlanetAs 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
第9話
The Jumprope That Erases PeopleRyuuta becomes trapped within the dimension of a supercomputer by twin girl Mecha-Humans being used to capture children for Gear.
Goodbye Yellow
第10話
Goodbye YellowDoctor 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
第11話
Enter, New Warrior JunAfter 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!
第12話
Murderer Green!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!
第13話
I'm Jun!Jun tries to figure a way to defeat Gear's newest upgrade on her own while the captain of the Olympic archery team tracks her down to find out what happened to her.
Neo Intellect Brain!
第14話
Neo Intellect Brain!When Doctor Man abandons a new Canth-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
第15話
The Female Warrior's Flaming OathAfter 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
第16話
Run, 21599 SecondsJun must reach a device that will cause a massive volcanic explosion in 6 hours time, but is distracted by Farah in preventing her from reaching that goal quickly.
I Saw Ryūgū Castle
第17話
I Saw Ryūgū CastleDoctor 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.
The ESPer Girl's Prayer
第18話
The ESPer Girl's PrayerShingo 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
第19話
My Father is Doctor ManDoctor Man adds his 17-year old son to Gear as its new commander, with a cruelty that Ryuta believes can be stopped.
Prince's Challenge!
第20話
Prince's Challenge!As the Bioman try to figure out how to deal with Prince and his Grotes Canth, Ryuta tries to discover how to relate his own experiences in hopes of dealing with Doctor Man's son.
Protect the Biobase
第21話
Protect the BiobaseA 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!
第22話
A Great Burglar!? Blue!When Ryuta gets involved in returning a gold statue to its original owner, it becomes complicated when Farah sends out a Ryuta mecha-human to steal gold for Gear.
Gyo! Attack Of The Puppets!
第23話
Gyo! Attack Of The Puppets!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
第24話
The Exploding Flower of LoveShingo tries to protect the flowers of two children after Farah and a Mecha-Gigan transform a field they cultivated for sale into bombs set to explode.
Prince's Ghost?
第25話
Prince's Ghost?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
第26話
My Father's Dreadful SecretAs 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
第27話
The Female Warriors of Spider HellHikaru and Jun become trapped in a seaside town conquered by an army of mechanical spiders that control the populace.
The Assassination of Doctor Man
第28話
The Assassination of Doctor ManRealizing 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!?
第29話
The Day Tokyo Disappeared!?Trying to find a boy's lost brother, Ryuta discovers a Gear plot to suck Tokyo into multiple simultaneous black-hole bombs!
Ultimate Canth's Demon Sword
第30話
Ultimate Canth's Demon SwordShirou becomes the fake fiance of a swordmaker's daughter in order to prevent Monster from obtaining a sword for Doctor Man's final Mecha-Gigan.
New Model!? Megas Arrives
第31話
New Model!? Megas ArrivesThe 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 Remodeling Plan
第32話
Gear's Great Remodeling PlanAs 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.
Has It Come Forth!? The New Finishing Move
第33話
Has It Come Forth!? The New Finishing MoveAs Bioman tries to focus to create a more powerful finishing move, Shingo returns to his old high school in hopes of finishing a challenge that may help the team.
Behold!! The Power of Bio
第34話
Behold!! The Power of BioWhile working on completing the Super Electron preparations, Peebo gets caught in an explosion and loses its memory as it encounters a boy who is trying to encounter aliens.
The Sixth Man
第35話
The Sixth ManWhen Bioman heads to the mountains to investigate strange meteors that interfere with their Super-Electronic Brains, they meet a weird man who appears powerful enough to start thinking he's their sixth member!
The Transforming Boy
第36話
The Transforming BoyWhen Shota discovers he can't become a member of Bioman, he unknowingly takes up an offer by Farrah to become their Magne Warrior, leading to him become an enemy of his friends!
The Assassin Silva!
第37話
The Assassin Silva!A robotic warrior from the war that destroyed Bio arrives on Earth, attacking both Bioman and Gear as he continues his mission to eradicate all Bio Particles in existence!
The Enigmatic Balzion
第38話
The Enigmatic BalzionAs Silva searches for his missing mecha Balzion, Peebo decides to confront the enemy Bio robot in hopes of trying to take it down before it takes down Bioman.
Mason's Trap!
第39話
Mason's Trap!After becoming hurt from a Silva attack, Hikaru must rush to the aid of her teammates when Bioman and the Bio Hunter become trapped within a ploy set up by Mason.
Stolen Turbo!
第40話
Stolen Turbo!After Monster and Zyuoh steals Bio Turbo from Shingo when he tries to show it off for a sick boy, he and Ryuuta take the Bio Machines in order to pursue them.
The Demonic Lullaby!
第41話
The Demonic Lullaby!In order to stop Gear's plot of causing mass hypnosis using a special ring device controlled by Meltzer, Hikaru travels into the dreams of a hypnotised girl to discover how to defeat them.
Go! Risk Your Life!
第42話
Go! Risk Your Life!When Monster's attack on a dam damages a nature preserve for birds, Shirou decides to crush Gear's desires in order to protect the animals living there.
The Sailor-Suited Soldier
第43話
The Sailor-Suited SoldierWhen Bioman encounter a seemingly immortal Neo Mecha Gigan, they must discover the secret of its power associated with a female Mecha Human who lands in the hands of Shuichi!
The Beautiful Conscience Circuit
第44話
The Beautiful Conscience CircuitBioman and Shuichi try to protect the Mecha Human Miki from the clutches of Gear, even with her as the possible key to stopping the invincible Satan Megas.
Human Bomb, Jun!
第45話
Human Bomb, Jun!When Jun is unexpectedly separated due to a clash of Gear and Silva's weapons, Doctor Man takes advantage by forcing a micro bomb onto Yellow4 to destroy Bio Robo.
Escape! The Town of Traps!
第46話
Escape! The Town of Traps!When Ryuuta discovers a plot by Monster to turn Tokyo into a jungle with specially-made footballs, he and Bioman try to escape their trap-filled city with their means to accomplish this goal.
Professor Shibata's True Colors!?
第47話
Professor Shibata's True Colors!?As the Biomen tries to assist Professor Shibata on furthering his Conscious Circuit research, they unexpectedly discover Balzion's possible hiding place as Shirou discovers the surprising truth about the mysterious scientist.
Enter! Balzion
第48話
Enter! BalzionWith the location of Balzion finally found, Bioman and Professor Shibata attempt to prevent both Gear and Silva from capturing the Anti-Bio mecha for either side.
Critical Bio Robo
第49話
Critical Bio RoboWith both Silva and Balzion in Gear's hands, Bioman faces a relentless, hopeless assault until they gain the hope from an ally to keep going in order to defeat this threat.
Assault Neograd
第50話
Assault NeogradBioman head to Antarctica in order to save Professor Shibata and stop Doctor Man, while Silva makes a final push in order to reclaim his mecha Balzion from the mad scientist.
Goodbye, Peebo
第51話
Goodbye, PeeboDoctor Man uses all of his acquired knowledge and technology to perform a final attack on Bioman, unknowing of a familiar presence who decides one final time to try and save what remains of Gear's leader.
