S1E1 - Gray Rhino King: Harbringer of Evil
Kikaider battles Gray Rhino King, and when he returns to the lab where Dr. Komyoji and Mitsuko work, Professor Gill sets it ablaze.
July 8, 1972, midnight
S1E2 - Green Mantis: Bizarre Killing Machine
Kikaider faces Green Mantis, who is planning a killing rampage to discredit Dr. Komyoji.
July 15, 1972, midnight
S1E3 - Orange Ant: Challenge to the Death
Although hindered by the sound of a Gill's flute, Jiro changes into Kikaider in order to battle Orange Ant.
July 29, 1972, midnight
S1E4 - Blue Buffalo: Fiendish Death Trap
Yukiko attempts to sneak away from the Destructoids to visit her daughter, but she is thwarted by Blue Buffalo.
Aug. 5, 1972, midnight
S1E5 - Yellow Jaguar: Claws of Evil
Prof. Gill uses Yellow Jaguar to assassinate the head of the Green Project, in order to get enough carbon dioxide for his bomb.
Aug. 12, 1972, midnight
S1E6 - Black Horse: Showdown at the DARK Execution Ground
The Destructoids begin to gather up humans to be used by Black Horse, and Mitsuko and Masaru fall into their hands.
Aug. 19, 1972, midnight
S1E7 - Bull Kong: Malevolent Monster Mayhem
Bull Kong kills a man who has been campaigning against the Destructoids, and Dr. Komyoji is framed.
Aug. 26, 1972, midnight
S1E8 - Carmine Spider: Menacing Blood-Sucking Laughter
In order to develop his evil apparatus, XR4, Prof. Gill orders Carmine Spider to find a child with Rh negative blood.
Sept. 2, 1972, midnight
S1E9 - Red Condor: Screech of Death
Red Condor kills everyone in a rural village in order to set up a base on which to conduct experiments on a biological weapon.
Sept. 9, 1972, midnight
S1E10 - Scorpion Brown: The Ultimate Weapon
Scorpion Brown has stolen a newly developed weapon from the Nakabori Laboratory and DARK plans to mass produce it.
Sept. 16, 1972, midnight
S1E11 - Gold Wolf: Tormented Howls from Hell
Mitsuko and Masaru are captured by Gold Wolf and Jiro is seriously injured by him when he tries to save them.
Sept. 16, 1972, midnight
S1E12 - Silver Cat: Ruthless Sorceress
Professor Gill sends Silver Cat in search of some ancient treasures that hold the secret to increasing the capabilities of the androids.
Sept. 23, 1972, midnight
S1E13 - Pink Tiger: Terror at the Amusement Park
Prof. Gill orders Pink Tiger to find the secret robot part that Dr. Komyoji has hidden away.
Sept. 30, 1972, midnight
S1E14 - Silver Tortoise: Destructoids Reborn
Prof. Gill recreates the 13 Destructoids defeated by Kikaida, and gives them three times their original power in order to test them against Silver Tortoise.
Oct. 7, 1972, midnight
S1E15 - Golden Bat: Cursed Shadow from the Past
Golden Bat approaches Mitsuko and Masaru in the form of Taro, their older brother, who was supposedly killed by DARK.
Oct. 14, 1972, midnight
S1E16 - Rouge Jellyfish: Invitation to the River Styx
Destructoid Rouge Jellyfish is conducting experiments with poisonous mini-jellyfish in a polluted river.
Oct. 21, 1972, midnight
S1E17 - Red Hornet: Hostage Terror
Under orders from DARK, Red Hornet begins spraying toxic gasses aimed at destroying the environment.
Oct. 28, 1972, midnight
S1E18 - Black Chameleon: The Grand Heist
Black Chameleon manages to hijack a load of atomic uratonium. Pursued by Jiro, he takes Mitsuko and Masaru hostage.
Nov. 4, 1972, midnight
S1E19 - King Crab Maroon: Keeper of the Death Ray
King Crab Maroon steals a 50-carat emerald ring which he needs to complete his new weapon.
Nov. 11, 1972, midnight
S1E20 - Blue Water Scorpion: The Skull Weed Conspiracy
Blue Water Scorpion adds a toxic substance to the drinking water, in order to turn the people into puppets of DARK.
Nov. 18, 1972, midnight
S1E21 - Purple Rat: Brutal Fangs of Poison
Purple Rat steals into a laboratory dedicated to communicable diseases in order to create a new DARK plague.
Nov. 25, 1972, midnight
S1E22 - White Saw Shark: Twelve-Hour Nightmare
White Saw Shark takes over an apartment complex and sets up a laser gun. Prof. Gill's plan is to shoot down a plane filled with special fuel into a densely populated area.
Dec. 2, 1972, midnight
S1E23 - Yellow Antlion Brothers: Alphabet Attack
The Yellow Antlion Brothers create the "Alphabet Attack" strategy in order to stop the wedding of a robotics scientist.
Dec. 9, 1972, midnight
S1E24 - Pink Armadillo: Sinister Temptress
Pink Armadillo transforms itself into a voluptuous woman to entice men and implant control devices in their brains.
Dec. 16, 1972, midnight
S1E25 - Orange Snail: Whistle of Death
Convinced by Prof. Gill that Kikaider has killed his children, Dr. Komyoji creates Orange Snail to avenge their deaths.
Dec. 23, 1972, midnight
S1E26 - Green Mammoth: The Next Ice Age Project
Kikaider saves Dr. Komyoji from Green Mammoth, but Mariko is kidnapped, and Kikaider gets sprayed with an oxidizing agent.
Dec. 30, 1972, midnight
S1E27 - Violet Turbo: Sinister Love
Dr. Araki, who has perfected the conscience circuit, is attacked by Violet Turbo. Jiro tries to save him, but is thwarted by Prof. Gill.
Jan. 6, 1973, midnight
S1E28 - Red Devil Stinger: Making Little Boys Cry
Kikaider saves Masaru from Red Devil Stinger, but gets infected by a corrosive bacteria.
Jan. 13, 1973, midnight
S1E29 - Green Sponge: Third Self-Resurrection
Masaru is saved by a girl named Kaori as he is being pursued by Green Sponge. Kaori believes Masaru is a runaway, and declares she'll run away too.
Jan. 20, 1973, midnight
S1E30 - Crimson Squid: Stalker of Pretty Coeds
Crimson Squid pursues brilliant young robotics expert named Shimamura Chidori. He intends to implant her brain in his own body.
Jan. 27, 1973, midnight
S1E31 - Gold Octopus: Prelude to Jiro's Demise
Prof. Gill orders Golden Octopus to hasten the construction of their secret base. Kikaider tries to save a father and daughter from DARK henchmen.
Feb. 3, 1973, midnight
S1E32 - Blue Electric Eel: Accordion Arm Agony
Kikaider, who has lost an arm, battles with Blue Electric Eel, and finally manages to tear an arm off the destructoid.
Feb. 10, 1973, midnight
S1E33 - Mask Crab Red: Enforcer of the DARK Code
Mask Crab Red tries to kill Mitsuko, but he is thwarted by King Crab Maroon, who had been saved by her earlier.
Feb. 17, 1973, midnight
S1E34 - Black Spiny Anteater: Destructoid with Child
Prof. Gill sends Black Spiny Anteater and his daughter, Tiny Spiny, to retrieve some sensitive microfilm from a widow of a victim of DARK.
Feb. 24, 1973, midnight
S1E35 - Black Crow: The End of "The End"
Dr. Komyoji is attacked by a flock of robot crows as he works in a field. Jiro tries to help him, but is thwarted by Black Crow.
March 3, 1973, midnight
S1E36 - Jiro Attacks Dr. Komyoji
Blue Stag Beetle robs bank after bank in an effort to raise funds for the development of DARK's greatest Destructoid.
March 10, 1973, midnight
S1E37 - Hakaider: Jiro's Formidable Younger Brother
Jiro manages to save a little girl from Starfish Purple. Meanwhile, DARK forces Dr. Komyoji to create the evil warrior, Hakaider.
March 17, 1973, midnight
S1E38 - Hakaider: Kikaider Killer
Jiro escapes from prison but is attacked by Hakaider. Jiro is overpowered, but Hakaider is unable to destroy him.
March 24, 1973, midnight
S1E39 - Kikaida: Wanted Dead or Alive
Angler Brown has plans to brainwash children and turn them into warriors. Kikaider saves the kids but slips away quickly to avoid the police.
March 31, 1973, midnight
S1E40 - Crisis! Jiro Stops Functioning
Grasshopper Gray builds an antenna that amplifies sound 3000 times. Masaru saves a young boy who is being attacked by Grasshopper Gray.
April 7, 1973, midnight
S1E41 - Jiro Blows Apart!
Mitsuko and Masaru are lured to the DARK base. Jiro stops them and proceeds alone, but he's bushwacked by Red Mine Toad. He changes into Kikaider, but gets blown to pieces.
April 21, 1973, midnight
S1E42 - Hakaida Rebels
Hanpei brings Kikaider to Mitsuko in pieces. Hakaider destroys Red Mine Toad who had downed his arch rival Kikaider. Then, Hakaida is defeated by Skeleton Flying Squirrel.
April 28, 1973, midnight
S1E43 - Jiro's End or Dark's Demise?! - Final Episode
Mitsuko succeeds in surgically returning the brain in Hakaida's head to her father, but Dr. Komyoji doesn't regain conciousness until...
May 5, 1973, midnight