In Masked Rider, Count Dregon has monsters called Insectovores which he uses in his plots. They are kept in jars which come to life when they are launched from the Spiderbase.
Monster List Here is a list of monsters used by Count Dregon and his minions:
Destructosphere First Appearance: "Escape from Edenoi" Pt. 1 (9/16/95) Voice Actor: Rudy Luzion
A grotesque grasshopper humanoid with the ability to change into a ball or a spike. Destructosphere was the first monster sent after Dex, when he arrived on Earth. Prior to the attack, Destructosphere was a sphere dropped to Earth by Count Dregon, in a scrapyard where he absorbed some junk to create his body. He proved very strong, but was defeated by Dex and his Rider Kick attack.
Beetletron First Appearance: "Escape from Edenoi" Pt. 2 (9/16/95) Voice Actor: Richard George
A large robot with hand-mounted cannons and tank treads instead of legs and feet. He spoke in a robotic monotone. His mission was to eliminate Combat Chopper and Magno so Dex could be outnumbered by Dregon's forces. He can attack with the guns on his body called Beetle Blasters. Combat Chopper tried to attack it and failed. He had Dex in a pinch until Magno rammed him and later knocked him on his side. He was the first to be destroyed by Dex's energy sword the Electro Saber.
Larvatron First Appearance: "License to Thrill" (9/23/95) Voice Actor: Billy Matsuda
A robotic Insectovore that impersonated Dex's driving instructor Mr. Li (portrayed by Billy Matsuda too). He can attack with his laser cannon arm and shoot a red beam from the red part of his head. Passing off as Mr. Li, Larvatron tried to run Dex over, but Dex held onto the car until he found a safe place to let go. After Larvatron dropped his disguise, Dex became Masked Rider and severed the robot's head with the Rider Kick. However, Larvatron had a backup head: a powerful four-way cannon. He fired the cannons on Dex, who then enlisted the aid of Combat Chopper. While on Combat Chopper, Dex managed to destroy him with his Electro Saber.
Mandible First Appearance: "Pet Nappers" (9/30/95) Voice Actor: Gardner Baldwin
A cactus-like monster with jaw-like pincers who assisted Nefaria and Gork in Count Dregon's plan to capture Ferbus and steal the Masked Rider powers. It can emit a vine from its mouth and launch its jaw-like pincers. Once Dex rescued Ferbus, he engaged Mandible and Gork in battle. When he got caught on Mandible's vine, he called for Combat Chopper and broke free from his vine. While riding on Combat Chopper, Dex destroyed Mandible with his Electro Saber. Fits the category of Gork's monsters.
Mothitron First Appearance: "Bugs on the Loose" (10/7/95) Voice Actor: Glen McDougal
A three-eyed green moth monster who has the ability to use moths to turn humans into Insectovores. He can also shoot lasers from his eye and wrap anyone in his long tongue. Count Dregon had Nefaria send the Maggots to lure Hal and Albee towards Mothitron during their bug hunt. Once that plan worked, Mothitron used his moths to infect the two of them. Slowly, Hal and Albee, who were immobilized by the attack, took on the characteristics of an Insectovore (claws, green skin, bug eyes, etc.). Ferbus, though, was able to escape and warn Dex. Using a butterfly Ferbus had caught, Dex created an antidote. As Masked Rider, Dex took Magno and the antidote to Hal and Albee's location, but then he was ambushed by Mothitron. During the battle, Magno tackled Mothitron and took Masked Rider to the cave. Once inside, while looking for Hal and Albee, Dex was attacked by Mothitron again. Dex chopped off Mothitron's tongue, but Mothitron still overwhelmed Dex. Magno tunneled into the cave to save Dex. Magno tackled Mothitron before Dex destroyed him with the Electro Saber and used the antidote to restore Hal and Albee.
Crimson Creeper First Appearance: "Arcade Ace" (10/14/95) Voice Actor: Steve Cassling
A black-haired crustacean monster with a strong-clawed right arm. He also has a toxic breath attack. While Dex was helping Albee train to beat the arcade ace Henry Wall, Count Dregon sent Crimson Creeper down with Double Face to capture Dex in order to steal the Masked Rider powers. Dex fought both of them in the first battle and called upon Combat Chopper for help. During a challenge against Henry Wall, Combat Chopper alerted Dex that Magno detected the Crimson Creeper attacking an amusement park. Dex chopped off Crimson Creeper's arm before he used his toxic breath on him. Dex counter-attacked with the Rider Kick before destroying Crimson Creeper with the Electro Saber.
Robo Rider First Appearance: "Super Gold" Pt. 1 (10/28/95) Actor: Winston Story
Dex's friend Donais was sent to Earth to give him the Super Gold upgrade. However, Donais was captured by the Maggots and taken to the Spiderbase, where he was then brainwashed into becoming Dregon's loyal servant. Dregon had been working on an artificial Masked Rider power, but it was too dangerous to test on himself, so he used it on Donais to turn him into Robo Rider. Robo Rider was silver and black with green eyes. He also held two swords in battle. Robo Rider attacked the school causing Dex to transform and fight him. Robo Rider retreated and confronted Count Dregon on why he sent Edentada down to Earth. After attacking Gork, Count Dregon instructed Robo Rider to keep the Edentada in its cave...which Robo Rider does. After Masked Rider escapes the cave that Edentada was in, Robo Rider attacked as Masked Rider warns him that Edentada is starting to make the area destabilized. In order to defeat Robo Rider, Masked Rider used the Rider Kick on him. Dex was then able to defeat Robo Rider by slashing him with the Electro Saber thus breaking the spell over Donais and returning him back to normal.
Edentada First Appearance: "Super Gold" Pt. 2 (11/4/95) Voice Actor: Bob Papenbrook
A savage elephant-like creature with crab-like claws. Edentada is a creature that feasted on Edenoites and acquired their powers. The Edentada was a fierce digger. Count Dregon had absolutely no control over the creature. Under Gork's suggestion, he launched it during Masked Rider's fight with Robo Rider. Robo Rider was instructed to keep Edentada in its cave. During the confrontation, Robo Rider forced it back in the cave. It starts to cause earthquakes when it starts to get hungry for Masked Rider causing Count Dregon to send Nefaria to stop its hunger strike. Masked Rider finds the cave that Edentada is in and fights it before Nefaria arrives with Cyclopter, Double Face, and Gork to bring Edentada back. However, Edentada attacked them which caused some magma to be released. As Masked Rider headed to the surface, Edentada started digging fast causing the entire area to become destabilized. After defeating Robo Rider and obtaining the Super Gold powers, Dex transformed into Masked Rider and then transforms into his Super Gold form to fight Edentada. Dex discovers that Edentada has planted a bomb. After disarming the bomb, Dex had Combat Chopper tackle Edentada. Dex then used his Ecto-Ray blaster to destroy Edentada.
Termasect First Appearance: "The Grandma Factor" (11/11/95) Voice Actor: John C. Hyke
A blue robotic scorpion-like monster who can shoot lasers from his eyes and fingers. After the Maggots mistakenly capture the Stewarts' grandmother instead of Molly and Albee, Grandma Stewart mistook the case that Termasect was in for trash and discarded it down the launch tube (which she thought was a garbage disposal) sending it down to Earth. Cycloptor said that it would be out of control, but Count Dregon says that he'll see how Termasect does with Masked Rider. Dex as the Masked Rider found Termasect and confronted him. After an attack from Termasect, Dex changed into his Super Gold form and summoned Combat Chopper (who was then transformed into Super Chopper). Dex sliced off Termasect's right hand while on Super Chopper (who blasted bullets from its exhausts) and then destroyed him with his Ecto-Ray.
Slimeasect First Appearance: "The Grandma Factor" (11/11/95) Voice Actor: Ross Bolen
A slithering grayish-white blob-like monster with tentacles for arms and a giant mouth in his midsection. Outside of his ability to turn into fast-moving slime and shoot steam from his mouth, he was known to eat anything. In order to kidnap Molly and Albee, Count Dregon launched the Slimeasect to help the Maggots. Unfortunately, the Maggots mistakenly kidnapped the Stewarts' grandmother. Following Termasect's destruction, Count Dregon had Nefaria place Grandma Stewart (who accidentally got petrified) near Slimeasect as bait. Dex arrived at the scene as Masked Rider and battled Slimeasect. When Slimeasect started to eat him, Dex called Magno whom Slimeasect moved out of the way of. After Dex destroyed Slimeasect with the Electro Saber, he restored his family's grandmother.
Recyclotron First Appearance: "Something's Trashy" (11/18/95) Voice Actor: Sparky Thornton
During a clean-up campaign in Leawood, Cyclopter's Reanimator Ray revived a fallen robot called Cyclotron. When upgraded to the mummy-like Recyclotron, his head was modified with a cooling helmet that kept the monster from overheating (which was the one flaw that led to his destruction in an earlier fight with Masked Rider). In addition to interchangeable arms, leg cannons, and metallic wrappings emitted from a compartment in his torso, he also had the power to control any electrical appliance. Using two cars, he seemingly killed Masked Rider with a missile launched from his right leg cannon. Recyclotron then attacked Leawood with reanimated appliances. Hal took it upon himself to go after Recyclotron with a Catho-Destabilizer weapon he invented. Unfortunately for Hal, Recyclotron took control of the Catho-Destabilizer until Masked Rider arrived. After a fierce fight, Dex managed to kick off his cooling helmet and knock him down with the Rider Kick. Dex then destroyed Recyclotron with the Electro Saber.
Fire Bug First Appearance: "Water Water Everywhere" (11/25/95) Voice Actor: Paul Schrier
A robotic monster that can manipulate fire. Double Face and Fact had created a chemical that when mixed with water will form a toxic mist that takes over the minds of whoever breathes it. In the event that Dex traces the toxic mist to the factory, Double Face prepared Fire Bug to fight him. When the Stewarts were at the community pool for the day, everyone but Dex got affected. Dex transformed into Masked Rider and used Magno to trace the mist back to the source. Dex engaged Fire Bug at the factory. Fire Bug dragged Dex into a room where it started a fire. Dex transformed into his Super Gold form making him immune to the heat. After breaking out of the room, Dex destroyed Fire Bug with his Ecto-Ray and stopped the gas flow.
Hydrasect/Arachnida First Appearance: "Stranger from the North" (1/27/96) Actor: Balinda English (Hydrasect, U.S. Footage) Voice Actor: Andrea Harmon