Overview: Kikaida battles Gray Rhino King and when he returns to the lab where Dr. Komyoji and Mitsuko work, Professor Gill sets it ablaze.
Overview: Kikaida faces Green Mantis, who is planning a killing rampage to discredit Dr. Komyoji.
Overview: Although hindered by the sound of Professor Gill's flute, Jiro changes into Kikaida in order to battle Orange Ant.
Overview: Yukiko attempts to sneak away from DARK to visit her daughter, but she is thwarted by Blue Buffalo.
Overview: Professor Gill uses Yellow Jaguar to assassinate the head of the Green Project, in order to get enough carbon dioxide for his bomb.
Overview: DARK begins to round up all humans to be used by Black Horse, and Mitsuko and Masaru fall into their clutches.
Overview: Bull Kong kills a man who has been campaigning against the Destructoids, and Dr. Komyoji is framed.
Overview: In order to develop his evil formula, XR4, Prof. Gill orders Carmine Spider to find a child with Rh-negative blood.
Overview: Red Condor kills everyone in a rural village in order to set up a base on which to conduct experiments on a biological weapon.
Overview: Scorpion Brown has stolen a newly developed weapon from the Nakabori Laboratory and DARK plans to mass produce it.
Overview: Mitsuko and Masaru are captured by Gold Wolf, and Jiro is seriously injured when he tries to save them.
Overview: Prof. Gill sends Silver Cat in search of the Crown of Munga, ad ancient treasure that is the key to increasing the power of future androids.
Overview: Prof. Gill orders Pink Tiger to find the design for a special circuit that Dr. Komyoji has hidden in one of his older robots at an amusement park.
Overview: Prof. Gill revives the 13 Destructoids defeated by Kikaida and gives them three times their original power to test them against Silver Tortoise.
Overview: Golden Bat approaches Mitsuko and Masaru disguised as Taro, their older brother, who was supposedly killed by DARK.
Overview: Destructoid Rouge Jellyfish is conducting experiments with poisonous mini-jellyfish in a polluted river.
Overview: Under orders from DARK, Red Hornet begins spraying toxic gasses aimed at destroying the environment.
Overview: Black Chameleon manages to hijack a load of atomic uratonium. Pursued by Jiro, he takes Mitsuko and Masaru hostage.
Overview: King Crab Maroon steals a 50-carat emerald ring which he needs to complete his new weapon.
Overview: Blue Water Scorpion adds a toxic substance to the drinking water, in order to turn the people into puppets of DARK.
Overview: Purple Rat steals into a laboratory dedicated to communicable diseases in order to create a new DARK plague.
Overview: 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.
Overview: The Yellow Antlion Brothers create the "Alphabet Attack" strategy in order to stop the wedding of a robotics scientist.
Overview: Pink Armadillo transforms itself into a voluptuous woman to entice men and implant control devices in their brains.
Overview: Convince by Prof. Gill that Kikaida has killed his children, Dr. Komyoji creates Orange Snail to avenge their deaths.
Overview: Kikaida saves Dr. Komyoji from Green Mammoth, but Mariko is kidnapped, and Kikaida gets sprayed with an oxidizing agent.
Overview: Dr. Araki, who has perfected the conscience circuit, is attacked by Violet Turbo. Jiro tries to save him, but is thwarted by Prof. Gill.
Overview: Kikaida saves Masaru from Red Devil Stinger but gets infected by a corrosive bacteria.
Overview: Masaru is saved by a girl named Kaori as he is being pursued by Green Sponge. Kaori believes Masaru is a runaway and declares that she'll run away too.
Overview: Crimson Squid pursues a brilliant robotics expert named Shimamura Chidori. He intends to implant her brain in his own body.
Overview: Prof. Gill orders Gold Octopus to hasten the construction of a secret base. Kikaida tries to save a father and daughter from DARK henchmen.
Overview: Kikaida, who has lost an arm, battles with Blue Electric Eel and finally manages to tear an arm off the Destructoid.
Overview: Mask Crab Red tries to kill Mitsuko, but he is thwarted by King Crab Maroon, who had been saved by her earlier.
Overview: Prof. Gill sends Black Spiny Anteater and his daughter, Tiny Spiny, to retrieve some sensitive microfilm from the widow of a DARK victim.
Overview: 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.
Overview: Blue Stag Beetle robs bank after bank in an effort to raise funds for the development of DARK's greatest Destructoid.
Overview: Jiro manages to save a little girl from Starfish Purple. Meanwhile, DARK forces Dr. Komyoji to create the evil warrior, Hakaida.
Overview: Jiro escapes from prison, but is attacked by Hakaida. Jiro is overpowered, but Hakaida is unable to destroy him.
Overview: Angler Brown has plans to brainwash children and turn them into warriors. Kikaida saves the ids, but slips away quickly to avoid the police.
Overview: Grasshopper Gray builds an antenna that amplifies sounds 3000 times. Masaru saves a young boy who is attacked by Grasshopper Gray.
Overview: Mitsuko and Masaru are lured to DARK base. Jiro stops them, but he is bushwhacked by Red Mine Toad. Then, Kikaida gets blown into pieces!
Overview: Hakaida destroys Red Mine Toad. Mitsuko repairs Kikaida, but Jiro cannot transform into Kikaida. Then Hakaida is defeated by Skeleton Flying Squirrel.
Overview: Mitsuko restores the brain of Hakaida's head to her father. Dr. Komyoji repairs Jiro. Kikaida corners Prof. Gill, who initiates the DARK base self-destruct sequence.