S01:E41 - Magma Monster Ghoster, Decisive Battle at Sakurajima
For the construction of a tunnel that connects Sakurajima and Ebi Heights, Doctor Reaper sends in the monster Ghoster.
S01:E01 - The Mysterious Spider Man
Takeshi Hongo, a young scientist boasting of an IQ of 600 and a racing prodigy, is abducted and his body surgically remodeled by Shocker, an evil secret society plotting for global domination.
S01:E02 - The Terrifying Bat Man
Hongo wins the championship, but the model who brings him his bouquet suddenly bares her fangs and attacks! With growing suspicion, Hongo investigates the woman's home, and finds it has been transformed into a lab.
S01:E03 - Monster, Scorpion Man
Shocker tests their mysterious Scorpion Man by releasing their slave workers and telling them that they can have their freedom if they can escape within 10 minutes, but one by one they die at the Scorpian Man's hands.
S01:E04 - Man-Eating Sarracenian
At an amusement park's botanical gardens, people begin to go missing. The young boy Kenji's older sister Yukie gets snatched away, and he tries to tell someone that his sister was attacked by a giant King Sarracenian!!
S01:E05 - Monster, Mantis Man
While a series of strange earthquakes are going on, Hongo is contacted by his childhood friend and seismologist, Amemiya Chikako, who tells him, “Something is planning to cause a major earthquake.”
S01:E06 - Grim Reaper, Chameleon
Former navy lieutenant-commander Sunada is attacked by the Chameleon Man. His aim is a submarine model in Sunada's possession that has secrets relating to a Nazi treasure concealed inside.
S01:E07 - Duel With Grim Reaper Chameleon! World Fair Impression
Masked Rider, having fallen into a pit trap, loses his power in the secret room where no wind can reach and reverts back to his form as Hongo.
S01:E08 - Strangeness! Bee Woman
Hongo begins an investigation into the series of incidents where people who had glasses made at Kagemura's Optometry store have gone missing. But even Ruriko gets some lure glasses, and she disappears as well.
S01:E09 - The Terrifying Cobra Man
Cobra Man makes an attack on the gold vault, but when the pet dog of security guard Kondo barks at him, he drops his fangs! Seeking his fangs, he attacks Kondo.
S01:E10 - The Revived Cobra Man
Ritsuko Ayakoji of the Ayakoji Biology Research Institute, Shocker's collaborator, puts up advertisements for “Purchasing Animals” to gather animal blood and capture the people who bring in their pets.
S01:E11 - Bloodsucking Monster, Gebacondor
Shocker has produced a new monster, Gebacondor, by assembling into one all the strong points of their previous monsters. But Gebacondor needs the lifeblood of young women.
S01:E12 - Murder, Yamogelas
Doctor Shirakawa has invented a death ray but tries to seal his invention away, while his aid Shibata conspires with Shocker and is remodeled into the monster Geckogeras, making secret plans to take the death ray.
S01:E13 - Tokageron and the Big Monster Army
To break through the Toyo Atomic Energy Research Laboratory's barrier, Shocker remodels pro soccer athlete Nomoto and produces the monster Tokageron with powerful kicking might.
S01:E14 - Raid of the Demon Sabotegron
Taki receives word that a new Shocker leader is coming to Japan from Mexico and meets up with the one who contacted him, but they transform into Sabotegron.
S01:E15 - Counterattack, Sabotegron
At the end of fierce fighting, Masked Rider drives Sabotegron away. Sabotegron then uses Flowers of Mexico to attack Hayato and the Tachibana Racing Club.
S01:E16 - Wrestler of the Devil, Pirasaurus
Shocker gets their hands on the Pirazaurus whose poison can kill a giant dinosaur in mere seconds and begin to create a cyborg by combining it with a human.
S01:E17 - Death Match in the Ring: Defeat! Pirasaurus
Pirazaurus experiments with the powerful deadly gas, “Mist of Death,” at a gogo house. He launches his scheme to obliterate Japanese leaders with the Mist of Death as they spectate a pro wrestling match.
S01:E18 - Fossil Man: Hitodanger
Shocker creates a missile base in the mountains and appoints the monster Hitodanger to defend it. After saving a boy from a Shocker attack, he fights Hitodanger to save Taki who went searching for the base.
S01:E19 - Monster Kanibubbler Appears in Hokkaido
For Shocker's plan to cause a tsunami in Hokkaido through submarine earthquakes, they send in the monster Kanibubbler to destroy all seismomitors.
S01:E20 - Fire-Breathing Caterpillar Monster: Dokugander
Ichimonji, who has started an inquiry into a village thrown into panic by a gigantic catapillar creature, meets with Yoshioka who is looking for a missing professor, and together they begin a search for the professor.
S01:E21 - Dokugander, Confrontation at Osaka Castle
In order for Shocker to make use of a growth drug developed by Yoshioka, Dokugander's adult form transforms into the deceased professor to trick the assistant professor Yoshioka.
S01:E22 - Suspicious Merman Amazonia
An olympic swimmer disappears suddenly right before the eyes of his teammates, and a young man swimming in the ocean gets kidnapped by a monster who appears.
S01:E23 - Sky-Flying Monster Musasabedol
Shocker creates the monster Musasabidol to go after a new liquid fuel developed by Doctor Ookuma. Taki, who is visiting Hokkaido, discovers this plan, and after following Taki, Ichimonji confronts Musasabidol.
S01:E24 - Deadly Poison Monster Kinokomolg's Sortie!
After a prisoner is immersed in the extract of poisonous mushrooms for one week, the monster Kinokomorgue is born.
S01:E25 - Defeat Kinokomolg!
Kinokomorgue declares, “Make him taste the fear of death!” and injects the captured Ichimonji with the antidote, returning him to his senses.
S01:E26 - The Terrifying Antlion
While the monster Hell Thunder enacts his plan to make an artificial antlion pit that tears main roads into pieces, the supreme commander Colonel Zol is dispatched from Shocker's branch in the Middle East.
S01:E27 - Mukadelas Monster Classroom
Children are abducted by a suspicious man who calls himself a close friend of Masked Rider. The man is the Shocker beast Mukaderas and he controls children with hypnotic radio waves for their scheme to turn them into members of Junior Shocker.
S01:E28 - Underground Monster Mogurang
Shocker schemes to turn Tokyo Bay into a sea of flames by pouring in petroleum from industrial areas, equipping the monster Mogurang with an Electro Eye that he uses to capture humans.
S01:E29 - Electric Monster Kuragedall
Shocker seeks humans capable of withstanding 5000 volts of electricity to make a resource of Electric Humans they can use to assassinate important figures, so Kuragedal who can release high-voltage currents is sent to capture people.
S01:E30 - Revived Fossil, Bloodsucking Trilobite
Doctor Shimura's research that can revive ancient lifeforms catches the eye of Shocker, who steal the ancient trilobite ressurected from a fossil and infuse it with the blood of a blood-sucking cyborg, creating the monster Zanbronzo.
S01:E31 - Deathmatch! Anteater Demon Arigabari
Mount Tengu is the test site for the bacteria, “Amazon's Curse,” of Shocker's monster Arigabari, and they attack the young man Izaki who visits the mountain.
S01:E32 - Cannibalism Flower, Dokudalian
The monster Dokudahlian is made from a man-eating flower that's lived for 200 years in the deep forests of New Guinea and he transforms into a florist who emits hypnosis sound waves.
S01:E33 - Steel Monster, Armadillong
Dispatched from Brazil, the monster Armadillong is given the order from the Chief, “Defeat my longtime enemy Rider,” before enacting his plan to destroy gas tanks.
S01:E34 - Japan in Danger! Gamagiller's Invasion
Doctor Origuchi of the Criminal Research Institute looks into Shocker's evil doing, and discovers their plan to split the Japanese islands with a special nuclear weapon.
S01:E35 - Murderous Ant Queen, Archimedes
Shocker's scientists succeed in producing a queen ant cyborg from an ant's egg. The created monster Archimedes attacks a bank with her powerful formic acid.
S01:E36 - Resurrected Mummy Monster, Egyptus
Shocker discovers a monster from the time of ancient Egypt in the pyramids, the mummy Egyptus.
S01:E37 - Poisonous Gas Monster Trickabuto's G-Plan
Shocker's newly developed killer plants are placed in theaters and concert halls as they scheme up the G Strategy to annihilate everyone.
S01:E38 - Lightning Monster Eiking's World Darkness Plan
Captured two years ago, the marine biologist Doctor Seki created the monster Rayking but flees Shocker and is rescued by Ichimonji and the others.
S01:E39 - Monster Wolf Man's Huge Murder Party
Colonel Zol executes his Wolf Strategy to make werewolves with the Wolf Virus. In the midst of this, the young girl Kumiko from the Wakakusa Garden orphanage witnesses one of the experimental wolfmen.
S01:E40 - Deathmatch! Monster Snowman vs. Two Riders
Doctor Reaper of Shocker's Swiss branch takes up a new post in the Japanese division. He makes plans to detonate Kirishima's volcanic belt by digging an underground tunnel between Kirishima and Sakurajima.
S01:E41 - Magma Monster Ghoster, Decisive Battle at Sakurajima
For the construction of a tunnel that connects Sakurajima and Ebi Heights, Doctor Reaper sends in the monster Ghoster.
S01:E42 - The Devil's Messenger, Mysterious Fly Man
Doctor Reaper captures a cold-hearted young man, who doesn't even care about committing a hit-and-run to a young boy, and remodels him into the Fly Man.
S01:E43 - Mysterious Birdman Pranodon's Attack
Emi of the Tachibana Racing Club is taken by Shocker, fitted with a transmitter and controlled by the monster Pranodon's hypnotism radio waves.
S01:E44 - Graveyard Monster, Kabibinga
The monster Moldbinga schemes to cultivate a killer mold that grows from the nourishment of humans and he attacks people in the graveyard near the hideout so he can conduct tests with his killer mold.
S01:E45 - Monster Namewhale's Gas Explosion Plan
Doctor Yajima develops an artificial brain that has the power to amplify the abilities of animals exponentially and keeps it to himself.
S01:E46 - Showdown!! Snow Mountain Monster Bearconger
Shocker plots their “Snow Strategy” to melt all of the snow of Kusatsu Heights and cause a great flood, and makes the physicist Doctor Mikawa manufacture an energy bomb that releases intense heat.
S01:E47 - The Death-Calling Ice Devil Todogiller
The monster Todogiller, who can fire a Freezing Shot that is 300 degrees below zero, freezes humans and Shocker turns them into cyborgs to execute their “Ice Strategy.”
S01:E48 - Bloodsucking Marshes of Hiruguerilla
With the blood-sucking leeches he controls the monster Leechguerilla absorbs the lifeblood of humans, and by injecting a green medicine into them he can change the humans into slaves.
S01:E49 - Cannibalistic Monster, Isoginchack
The old man Nakayama finds a vein of diamonds in the continent of Africa and sends the whereabouts of the vein to his grandchild written on a medal, but Shocker targets the vein as well.
S01:E50 - Monster Kamestone's Murderous Aurora Program
An aurora suddenly appears in the Tokyo skies. The many people who see this look towards it, and one by one they get brought in to hospitals.
S01:E51 - Stone Monster Unicornos vs. Double Rider Kick
Shocker infuses a unicorn brought back from a fossil with the blood of a fiendish man, creating the monster Unicornus. Unicornus turns Goro and others into fossils.
S01:E52 - My Name Is Mysterious Birdman Gilgalass
Gilgalass transforms himself into a crow that can speak like a human, and attacks humans with the Dead Man Gas that turns them into homicidal maniacs.
S01:E53 - Monster Jaguarman's Ready-to-Die Motorbike War
In place of Ichimonji who heads to South America to pursue Doctor Reaper, Hongo once again comes to protect Japan.
S01:E54 - Sea Serpent Man of the Phantom Village
Shocker sets up a training camp in a village in the mountains. The monster Sea Snake Man who was trained at the camp uses the sight-warping Prism Eye to execute victims.
S01:E55 - Cockroach Man!! the Terrifying Bacterial Ad-Balloon
Shocker develops a bacteria that ages biological cells. By putting the bacteria into the balls of a bowling alley, they conduct an experiment to rapidly age young people.
S01:E56 - Amazon's Poison Butterfly Gireera
The Shocker monster Gireera schemes to throw capsules packed with a deadly poison powder into Japan's national reservoirs for their “Poison Water Strategy”.
S01:E57 - Tsuchigumo Man Poisonmondo
Hongo's friend Sawada completes a liquid gunpowder that can melt any metal. The Shocker monster Poisonmondo targets this gunpowder.
S01:E58 - Monster Poison Lizard, Duel in Fear Valley!!
Doctor Ootaguro succeeds in developing the “Alpha Liquid,” a life revitalizing drug that can revive a dead organism.
S01:E59 - The Bottomless Swamp Monster, Earthworm Man!
From the only surviving earthworm of the Bikini Islands atomic bomb experiments Shocker creates Earthworm Man.
S01:E60 - Mysterious Owl Man's Murderous X-Rays
The Owl Man begins experimenting with the Murder X-Rays equipped in both of his eyes that can turn living things into bone.
S01:E61 - Monster Catfishgiller's Electric Hell
Doctor Reaper returns to Shocker's Japan branch of Katsugawa Island along with Catfishgiller who he remodeled from an electric catfish.
S01:E62 - Monster Hedgehoras' Murder Skull Plan
With the poison needles all over his body containing a killer virus that can melt humans, the monster Hedgehoras obliterates humans one after another.
S01:E63 - Monster Rhinogang's Autorace of Death
While Hongo and the others are training intensely with their sights set on winning the All Japan Motorcycle Championship, Rhinogang is dispatched from Shocker's Africa division.
S01:E64 - Monster Cicadaminga's Song to Kill Everyone
While catching cicadas, Naoki witnesses a murder by the Shocker monster Cicadaminga.
S01:E65 - Monster Dr. Insect and the Shocker School
Deceiving them with the slogan, “Come catch Masked Rider and beetles!” Shocker kidnaps children to Mount Takao where Shocker's insect expert Beetlelong organizes a Shocker school.
S01:E66 - Shocker Graveyard, Revived Monsters
The cyborg Longhornkid revives the monsters defeated by Rider to begin the “Devil Festival.”
S01:E67 - The Shocker Leader Appears! Riders in Danger
An investigator of the FBI's Alps division entrusts Taki with information about Shocker sending their top secret operation plans to Japan's Manazuru Coast and is attacked by the monster Girizames.
S01:E68 - Doctor Shinigami, the True Meaning of Terror?
Appearing in Japan once again, Doctor Reaper has a plan to destroy Japan by controlling a meteorite.
S01:E69 - Monster Gillercricket's Claws of Impending Death
The monster Gillercricket has the ability to transform humans he stabs with his poisonous red claws into murderous fiends with their own death claws.
S01:E70 - Monster Electric-Guitarbotal's Fireball Attack
Born from high voltage, the monster Electrifirefly receives orders from Ambassador Hell to steal all of the electricity inside Tokyo.
S01:E71 - Monster Horseflygomes' Rokkoudai Mountain Pursuit
Hongo and Taki receive communication from the FBI saying, “There are clues to Shocker in Kobe,” and so they secretly fly to Kobe in search of Shocker movement.
S01:E72 - Vampiric Mosquilas vs. Two Riders
The new monster Mosquilas comes from South America and plots to create a Shocker base in the Kii Peninsula.
S01:E73 - Double Riders' Defeat! Shiomaneking
Shocker's plans to establish a base on the southern tip of the Kii Peninsula obstructed, they use Crabking to abduct the oceanographer Doctor Sakai who dreams of an undersea farm.
S01:E74 - Deadly Bloodsucking Fiends!! Good Luck, Rider Boys' Squad
Tobei Tachibana becomes president and Taki acts as commanding officer of the Boys' Masked Rider Squad that is formed. Around that time, there is an outbreak of multiple attacks at blood banks.
S01:E75 - Poison Flower Monster Roseranga: The Secret of the House of Terror
Taki arrives at the place where he received word of a Shocker sighting from the Boys' Rider Squad but is captured by the monster Roseranga.
S01:E76 - Three Head of Generator Monster Seadragons!!
Shocker packages the Seadragon monsters in “Strange Beast Monster Cans” and sends them into the homes of the Boys' Rider Squad members. The fully grown Seadragons begin attacking people.
S01:E77 - Monster Newtgeth, Duel at the Farm of Hell!!
Using his power to liquify his entire body, Shocker monster Newtgeth abducts many adult men to advance the construction of an underground airfield.
S01:E78 - The Dreadful Urchindogma + the Phantom Monster
The monster Urchindogma takes over the Ootaki village near Tobei's hometown in order to raise a massive amount of Urchindogma eggs.
S01:E79 - Hell Ambassador!! the True Meaning of Fear?
Someone reports the Shocker monster Garagaranda's strategy to poison the water supply to Masked Rider. The Shocker Chief detects Ambassador Hell is the traitor and decides to execute him.
S01:E80 - Gel-Shocker Appears! Kamen Rider's Last Day!
With Ambassador Hell's defeat, Shocker's Japan division is abandoned. However the Shocker Chief adds the power of Africa's secret organization Geldam and forms the new organization Gel-Shocker.
S01:E81 - Kamen Rider Dies Twice!
Gel-Shocker's Scorpiolizard uses the Shocker scientists as the guinea pigs for an oxygen deprivation gas and eliminates them. However one scientist, Takashi, does escape and attacks his wife's hospital.
S01:E82 - Monster Jellyfish Wolf, Dreadful Rush Hour
Using Jellyfishwolf who can release 10 million volts of electric current, Gel-Shocker schemes to massacre people by bringing lightning down on Shinjuku station during rush hour.
S01:E83 - Monster Inokabuton, Defeat the Rider With Crazy Gas
Gel-Shocker remodels a death row inmate into the monster Boarbeetle. Boarbeetle possesses a madness gas and in order to succeed in their strategy to devastate Tokyo with a deadly poison gas.
S01:E84 - Watch Out, Rider! Isoginjaguar's Hell Trap
Isoginjaguar, reconstructed for the purpose of destroying Rider, abducts the girl Maki who is searching for her father. During the Boys Rider Squad's search for her they find a Gel-Shocker trap.
S01:E85 - Sludge Monster, Dreadful Murder Smog
Combining a viscious criminal with a moray eel and sea turtle that grew up in the sludge of Tago Inlet, Gel-Shocker produces Utsubogamesu.
S01:E86 - Monster Eaglemantis' Human Hunt
The Boys Rider Squad come to hike Mount Oomuro. Meanwhile, Gel-Shocker's Eaglemantis executes the human hunting strategy and attacks a bus headed for Mount Oomuro, abducting the passengers.
S01:E87 - Gel-Shocker's Delivery Man of Death
Gel-Shocker draws up a list of Japan's important figures to execute. The monster Kumolion delivers letters of advance notice for their deaths to these figures and then assassinates them one by one.
S01:E88 - Bizarre! the Picture of the Black Cat That Calls for Blood
Hongo consults with the young boy Satoru who is concerned about his older brother since he's become obsessed with painting a black cat.
S01:E89 - Fear's Pet Strategy, Drop Rider Into Hell!
Gel-Shocker's Canarycobra transforms into a tiny canary and approaches people, then kills them with the deadly poison of his Cobra Hand.
S01:E90 - Fear's Pet Strategy, Rider SOS
After defeating Canarycobra, Nezucondor appears before Masked Rider. Nezucondor carries the plague inside his body and impliments the pet strategy to spread it throughout Tokyo.
S01:E91 - Gel-Shocker, Enroll in Terror School
Hongo learns from the Boys Rider Squad members of strange occurances in the Tanzawa district and heads to the scene, but he is attacked there by Boys Gel-Shocker Squad.
S01:E92 - Atrocity! Fake Kamen Rider!!
Masked Rider and Mukadetiger simultaneously vanish. At that time, the Gel-Shocker Chief determines the real identity of the Anti-Shocker Alliance that has continuously disrupted Gel-Shocker activity.
S01:E93 - 8 Kamen Riders
Masked Rider #1 is driven back by the Shocker Rider and the monster Haetoribachi's coordination and sinks under the sea with Haetoribachi.
S01:E94 - The True Identity of the Gel-Shocker Leader
Wih the Anti-Shocker Alliance's back up, the double Riders are able to escape danger and take Raydokuga prisoner. Moreover, to defeat Shocker Rider, they begin special training under Tobei's tutelage.
S01:E95 - Monster Garaox's Sky-Flying Car
Gel-Shocker's Garaox uses his demon fog that can make objects float to attack vehicles. Hongo saves a man who is dropped from midair and questions how.
S01:E96 - Takeshi Hongo, Cactus Monster Exposed!?
The cactus research expert Doctor Matsuda is remodeled into Cactusbat. Cactusbat attacks the World Peace Committee's members and using the thorns on his arms he turns the people into cacti.
S01:E97 - Takeshi Hongo, Transformation Impossible
The Gel-Shocker monster Leechameleon uses the blood absorbed from humans to resurrect Ganikomol who once defeated Rider. Learning of this, Hongo embarks for the enemy's lair.
S01:E98 - Gel-Shocker Annihilated! the End of the Leader!!
With the arrival of Masked Rider #2 Hongo is rescued and the Double Riders showdown against Leechameleon.