Created to wipe out the people of Academia Island. Its body is covered with flesh-eating Bara-Bara bugs that fly out to attack people at any moment; it also fires laser beams and flames. Brain core made by Kemp.
Appears in: Episode 2, "Three Powers Sworn to Life"
Created for Obular's beast-man transformation plan. Its hands conceal syringes, which it uses to inject young people with an experimental drug, turning the victims into beast men. Armed with small bombs. Brain core made by Obular.
Appears in: Episode 3, "Obler Demonic Transformation"
Able to teleport objects anywhere. Its left hand fires a teleport beam at an object, converting it into light waves, which its right hand then transmits to the destination. Brain core made by Mazenda.
Appears in: Episode 4, "Exposure of the Dummy Man"
Created to cause chaos in the city. It can turn into a car engine and hide inside a vehicle, sending it careering through the streets where no one can stop it. Armed with laser beams. Brain core made by Kemp.
Appears in: Episode 5, "The Joy Riding Engine Monster"
Able to turn back time, it once brought dinosaurs from the ancient past into the present. It also uses time as a weapon, controlling its enemies' every move by controlling time. Brain core made by Obular.
Appears in: Episode 6, "Invasion of the Living Dinosaur!"
It absorbs human anger as its own energy; victims drained of their anger become listless and lose interest in everything. It turns the anger energy into various weapons. Brain core made by Kemp.
Appears in: Episode 8, "The Duel of Love and Anger!"
It absorbs oil and turns it into a special perfume. Any man who smells it instantly falls in love with Mazenda and will do anything to win her favour. Armed with flames, it can also turn into a ball of light to attack. Brain core made by Mazenda.
Appears in: Episode 9, "Rose! Smell Feverish"
It can change into a flying form and uses dimensional power to turn the places it passes into a maze, where it comes and goes at will. Armed with laser beams. Brain core made by Kemp.
Appears in: Episode 10, "The Skateboard to Escape the Maze"
It goes around biting people, and anyone it bites becomes an ape-man who obeys it. Agile, it fights with sharp teeth and claws. Later tamed by Arashi Busujima. Brain core made by Obular.
Appears in: Episode 11, "The Man Who Bit a Brain Beast"
Created for Ashura's IQ contest against a university professor. It has formidable calculating and learning abilities, and can see through and analyse an enemy's weak points.
Appears in: Episode 12, "Super-Genius Ashura!"
It devours garbage buried underground and turns it into a powerful poison gas inside its body. Brain core made by Mazenda.
Appears in: Episode 13, "Burn! Steel Colon"
An electric orb on its left arm fires powerful electric beams, and anyone hit becomes an "electric man" charged with strong magnetism. Yusuke was once turned into one and shunned by the people around him. Brain core made by Ashura.
Appears in: Episode 14, "The Scream of Kettle-Man Yusuke"
It breathes scorching flames from its mouth, and helps Gash seize the power ore at the core of the combat robot "S1".
Appears in: Episode 15, "Deadly! Grim Reaper Gash"
It creates jiangshi from the souls of the dead and sends them to attack people. Brain core made by Obular.
Appears in: Episode 16, "The Letter of Jiang Shi"
Made by fusing a brain core with Toto, a crying clown doll treasured by a girl named Reiko, it can control dolls as weapons. Toto's consciousness once overpowered the Brain Beast and saved Reiko. Brain core made by Kemp.
Appears in: Episode 17, "The Crying Doll! The Attacking Doll!"
Created by Mazenda from her own genes for "gentleness and love", it can take the form of Rei, a gentle woman who looks exactly like Rui Senda. Brain core made by Mazenda.
Appears in: Episode 18, "A Trap! Joh's Beloved Brain Beast"
Gou Omura's alter-ego Brain Beast, it brainwashes students with the "Volt Bible". Armed with a fountain-pen-shaped spear. Brain core made by Obular.
Appears in: Episode 19, "Geek-Boy Obular"
Created by Guildos after winning Bias's approval, it has the power to regenerate. Brain core made by Guildos.
Appears in: Episode 20, "Failing Obular's Counterattack!"
Kemp, Mazenda and Ashura kidnapped Gou Omura and turned his body into this Brain Beast, which they sent to fight Liveman. Brain core made jointly by Kemp, Mazenda and Ashura.
Appears in: Episode 21, "Listen, Gou!! Mother's Voice…"
Led into battle by Butchy, it plays the guitar while singing lullabies that put listeners to sleep. In the end a girl named Kumiko played the piano and cancelled out the guitar's hypnotic effect. Brain core made by Butchy.
Appears in: Episode 22, "Enter the Space Karaoke Master"
It wields a sword forged from the new alloy "Giga Metal" and moves 0.1 seconds faster than Red Falcon; even the Falcon Sword was cut in two. Brain core made by Kemp.
Appears in: Episode 23, "The Life Risked at 0.1 Second"
It turns children into temporary geniuses, then changes them into pig-people. It fights with fireballs, but Yusuke kicked one back with an overhead kick and it was hurt by its own attack. Brain core made by Mazenda.
Appears in: Episode 24, "Can You Get a 100 for Playing!?"
Lurking beneath Tsuruga Castle in Aizu, it uses a "spirit summoning device" to call up the ghosts of past Brain Beasts to besiege Liveman.
Appears in: Episode 25, "The 8 Brain Beasts of Tsuruga Castle!"
It absorbs magma from deep beneath Mount Bandai and converts it inside its body into "Giga Super Energy". The energy released in the process makes insects giant, but also shortens their lives. Brain core made by Mazenda.
Appears in: Episode 26, "Aizu's Huge Rhinoceros Beetles!"
Used by Bias to set off earthquakes and distract Liveman, covering up the tremors caused by Giga Volt.
Appears in: Episode 27, "Daughter!! Destroy the Giga Project"
Created by Guildos and Butchy from the genes of a space creature from Vega. Its beam plants a larva, the "Vega Baby", inside a human body so that it will devour its host. Junichi gave birth to the Vega Baby after being implanted, but in the end the Vega Baby was killed by the Vega Brain while protecting Junichi. Brain core made by Guildos and Butchy.
Appears in: Episode 31, "Mama! The Parasitic Monster's Cries"
Kemp's alter-ego Brain Beast. Kemp made it by soaking a brain core in his own rare "βZO-negative" blood, and it feeds on human blood. Brain core made by Kemp.
Appears in: Episode 32, "Kemp, The Riddle of Blood and Roses"
Designed by Gash on Mazenda's orders from a photo of Tetsuya's "Tetsu-chan Robot". It later posed as the Tetsu-chan Robot in an attempt to assassinate Yusuke and the others. Brain core made by Mazenda.
Appears in: Episode 33, "Do Your Best, Tetsu-chan Robot"
Created by Bias himself to kill Miku, a girl who had come to the present from the year 2003. Brain core made by Bias.
Appears in: Episode 34, "Love That Runs through the Future and Present!"
A Brain Beast created for assassination, fitted with a targeting system to hunt down Yusuke. Kemp brought it along to his promised duel with Yusuke, but Bias secretly ordered it to eliminate Kemp too if necessary. Brain core made by Kemp.
Appears in: Episode 35, "Yusuke and Kemp's Promise!!"
Mazenda made rugby jerseys from its armour shell, and the players who wore them came under its control, so Liveman dared not strike. The antennae on its head are its weak point. Brain core made by Mazenda.
Appears in: Episode 36, "Crash! The Tackle of Friendship"
It assisted Kemp's terrifying plan to power himself up into "Fear Beast Kemp". During the process Kemp's mind regressed to the age of 16 for a time. Brain core made by Kemp.
Appears in: Episode 37, "16-Year-Old Kemp's Fear Beast Transformation!"
It carries spare magazines for Machine Mazenda's "five-finger machine gun" on its left shoulder and helped Mazenda hunt down Yusuke. Brain core made by Mazenda.
Appears in: Episode 38, "Mobile Weapon of Destruction Mazenda"
Made from a meteorite, its body is extraordinarily hard; even Liveman's science struggles to break it. Brain core made by Guildos and Butchy.
Appears in: Episode 39, "Protect it! A Lifeform of Space"
It normally hides inside a ruby and appears like a genie from a lamp when the jewel is rubbed. Its powerful suction can pull people inside its body; Yusuke and Jou were once trapped there. Brain core made by Mazenda.
Appears in: Episode 40, "Love!? Megumi and the Jewel Thief"
An experimental Brain Beast brought by Kemp, it fires invisibility rays at random, turning people and objects invisible. Brain core made by Kemp.
Appears in: Episode 41, "The Confession of Gou, The Invisible Man!!"
Created by Bias himself, it works quickly and precisely. It fitted Tetsuya with a receiver so that Bias could control him with the Giga Brainwave and make him plant bombs inside Gran Tortoise. Brain core made by Bias.
Appears in: Episode 42, "Bias' Challenge From Space"
Modelled on Guildos himself, with shells on its head and arms, it can reassemble and regenerate again and again after being smashed. Its weapons include a long tongue and beams fired from its mouth. It was finally destroyed by Super LiveRobo, and Guildos then exploded, revealing that he was really a robot. Brain core made by Guildos.
Appears in: Episode 43, "A Mystery!? Guildos' Final Form"
Bias forced Butchy to rampage through the city together with it. Butchy was later won over by Megumi, but this enraged Bias, who killed him. Brain core made by Butchy.
Appears in: Episode 44, "Butchy's Great Reckless Driving of Tears!!"
Created by Ashura in his bid to become a Thousand-Point Brain, it can break into the city's computer centre and use computing power to make precise attacks, but it accidentally stole Bias's secrets. Brain core made by Ashura.
Appears in: Episode 45, "Ashura Reversal One Chance Game"
Kemp's masterpiece, called the strongest Brain Beast. It can turn any part of its body into a weapon to power itself up, and even Liveman was defeated by it. In the end Arashi Busujima strapped explosives to his body and died together with it. Brain core made by Kemp.
Appears in: Episode 46, "Honorable Man, Arashi! The Final Battle"
Mazenda used a "dream materialisation system" to summon the ghosts of four Brain Beasts (Transmission, Test, Gal and Meteor) and fused them into this one. Because the ghost Brain Beasts have no physical body, even Super LiveRobo was helpless against them. Brain core made by Mazenda.
Appears in: Episode 47, "A 1000-Point Brain! Mazenda!!"
After Kemp became a Thousand-Point Brain and Gash took his brain, Kemp's body turned into this Brain Beast.
Appears in: Episode 48, "Birth!! Boy King Bias!"
Created by Bias with the power of the Thousand-Point Brains after he became young again as the Boy King. It fought Liveman together with Gash and was finally destroyed by Super LiveRobo.
Appears in: Episode 49, "The Fall of Great Professor Bias"