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Icon-drive.png This article is about a Rider in Kamen Rider Drive.

For the computerized reincarnation of Professor Blink known by the same name, see Space Ironman Ultimate Form XVII.

"Why do only the most rude and unruly troublemakers seem to evolve?"
―Brain's complaints on evolved Roidmudes[src]

"Because I am called Brain!... An intelligence!"
―Brain during his sacrifice after saving Medic, telling about who he is to Banno[src]

"As expected, I am splendid and honest and..."
―Brain's last words[src]

The Brain Roidmude (ブレンロイミュード, Buren Roimyūdo), known simply as Brain (ブレン, Buren), or Roidmude 003 (ロイミュード003, Roimyūdo Zero Zero San), is one of the commanders of the Roidmudes. He was temporarily named by Mitsuhide Nira as Sou Noumi (能見 創, Nōmi Sō), a consultant from the Paranormal Science Institute.


Character History


Banno looks upon the vacant body of 003 as he prepares to install negative emotions inside it.

Roidmude 003 was among the initial trio of Roidmudes created by Tenjuro Banno with aid from his colleague Krim Steinbelt who had provided him with the Core Driviars which allowed him to give them life, with 002 being the first to be activated, having been forced to adopt a human form as Banno abused him out of spite. Bearing witness to 002's pain, Krim condemned Banno's actions and walked out on the project as Banno proceed to install negative human emotions into the Roidmude models, starting with the vacant bodies of 003 and 001. Why Are the Two Genius Scientists Having a Conflict?

Vowing that his kind would evolve to surpass Banno and humanity itself, 002, who would become known as Heart, proceeded to overthrow Banno, accompanied by 003 and 001. As a result, the scientist was apparently murdered by his own creations. In reality, however, his digitized consciousness was preserved and contained by the Roidmudes. The three Roidmudes then proceeded to the home of Krim Steinbelt to kill him as well. However, unbeknownst to the Roidmudes, Steinbelt's consciousness was uploaded into the Drive Driver upon his death by their hand. What Is in the Belt's Past?

Global Freeze

003 copies Mitsuharu Kineta as his knocks him out before escaping into cyberspace.

"This message goes out to our brethren across the globe. The Kamen Rider... Beware the Kamen Rider!"
―003 warns the Roidmudes of Protodrive before escaping to cyberspace.[src]

15 years later, all 108 Roidmudes emerged and launched an attack on human civilization which would be known as the Global Freeze. 003 was also the commander and part of the Roidmude onslaught in Tokyo which was stopped by the Shift Cars and Kamen Rider Protodrive.

Chase's memory of 001, 002, and 003 brainwashing him.

But at the midst of being weakened, he later infiltrated the intelligence agency and knocked out the programming deputy director Mitsuharu Kineta (thus copying his human form), and proceeded with his escaping into the cyberspace to evade Protodrive. Both Brain, Heart, and Freeze (001) acquired Protozero, the defeated Roidmude that sided with Krim Steinbelt and rebooted him (altered his memory as a result) as the Roidmude guardian Mashin Chaser. Type ZERO Episode 0: Countdown to Global Freeze Why Did My Time Stop? When Will the Second Global Freeze Start?


Brain is underwhelmed to see Medic revive.

Six months later, Brain and Heart remained in Japan to lead Roidmudes stationed in the country. After witnessing Protozero/Protodrive's successor, Shinnosuke Tomari/Drive, Brain became aware of this enemy and for once, poisoned him although he survived. When Mashin Chaser briefly allowed Drive to save the whole city from Volt Ghost's blackout plan, Brain punished Chase but this unintentionally leads him to discover his number, as well as a small portion of his memories. As Chase and everyone wondered the mystery of the formation of Ride Crosser, Brain revealed that Chase had been Protodrive and finally tried to put an end to him until he was stopped by Heart who let Medic reboot Chase again. Witnessing the rebooted Chase's loyalty as a success, he decided to join in the battle until he was burnt alive by Mach Moerl. Who Can Prevent the Dark Christmas Eve? When Will These Feelings Reach You?

Brain gives the other Roidmude commanders the data of the Special Investigation Unit. Figuring that Drive is among them, he planned to attack and/or expose Drive's civilian identity but all of them sarcastically reject it, rendering him nervous. Why is Rinna Sawagami Nervous? Witnessing Medic's success had been risen up to the point of correcting Chase's brainwashing and founding the Reaper Legion. Envious of her success, Brain contemplated to find her weaknesses even to the point of sabotaging Chase after his remodeling by Medic via weakening his firewall. Though the strategy was a little success, Medic found out about the whole trick and threatened to eliminate him if he tried to get in her way again. How Can I Use the F1 Body to Fight?

Brain witnesses a giant robot from another world.

When Roidmude 089 ("Dr. Dee") hosted a brief alliance with the remnant terrorist organization, Shocker, as well as YoukaiIcon-crosswiki.png from a parallel Earth, Brain took offense at the Youkai page Kyuemon IzayoiIcon-crosswiki.png, who rejected Heart's friendship, refering to the Roidmudes as 'mechanical puppets'. Rebuking by calling him a repulsive monster, Medic told Brain to calm himself while Heart noted that from the humans' point of view themselves as Roidmudes would indeed appear to be monsters. Later on, at their hideout, Brain witnessed a 'giant robot'Icon-crosswiki.png charge past the window, to which he alerted Heart. With him and Medic missing the sight, Medic said Brain was being silly again while Heart suggested he get some rest, to which Brain figured that Heart was probably right as the rest of the NinningersIcon-crosswiki.png' OtomoNinIcon-crosswiki.png set off to fight Kyuemon's Giant Roidmudes. Shuriken Sentai Ninninger Vs. Kamen Rider Drive Spring Vacation One-Hour Combining Special

Brain as Sou Noumi.

After being bested by Medic, he later aligns with Freeze, often calling him as "Teacher", and introduced himself to the police force as Sou Noumi. Where is Chaser Going? He later formulated a scheme, by convincing Go Shijima to meet 001 but declined. As he falls to the ground and seemingly to get the upper hand by a desperate Kamen Rider Mach, the Roidmude suddenly took out his iPad, revealing a strange glowing blue screen for Go to see, turning him into the newest part of their faction. What Really Happened to the Robbery Event? In fact, however, Go's memories was altered by 001 to make Go as their trump card in their plans upon to defeat the Kamen Riders, until Go revealed that he is immune to the effect and steals Brain's tablet to rescue his father. Who Claimed the Life of Shinnosuke Tomari?

Nira/Thief, with Brain in synchronization targets Yukari Kasawara, one of the eyewitness of Eisuke's death until the Kamen Riders rescue her though they did successfully manage to poison her. He then confronted Medic, telling her to call him Brain-sama before defeating her in his Over Evolved form. Nira and Brain later framed Shinnosuke for trying to take the lead of the Roidmudes and with Special Investigation Unit being backing him up. Though Shinnosuke escapes with the help from his friends, but Nira/Thief faces him instead and nearly gets himself killed by Drive and Chase, had Brain not using his Super Evolve form. Brain left the injured Chase, telling the latter that he would be a part of a bigger plan that the Executives are constructing. Why Did the Siege Happen?

He later joined Nira and Brain in the Special Investigation Unit's office and, after fusing with Nira used a potted plant to demonstrate what he and Nira, as the Thief Roidmude, had done to Yukari, as well as showing that he could kill her instantly if Shinnosuke resisted. After Krim and the Shift Cars had been caught and put in a bag, he separated from Nira and left under his Noumi alias to inform the police that Yukari had been "kidnapped" before entering a tent where six Plain Roidmudes joined him in watching Shinnosuke as Yukari's time counted down to zero. However, after Shinnosuke's apparent death, he accidentally revealed his true identity at a press conference about the incident when Yukari, alive and well, walked in saying that the Kamen Riders had saved her. He then fused with Nira, and after Drive Type Tridoron Kouji Genbar managed to separate them, he told Nira that they had never been friends and that he was just a tool for Brain to achieve his Over Evolved before attempting to face all three Riders himself. However, he was ultimately no match for their combined powers, and was defeated by a triple Rider Kick, with his Core being lucky enough to escape. Retreating in embarassment over losing his body, Brain's Core was intercepted by a smug Medic, who promised she would take very good care of him as he begged her to stay away, only for her to play with him much to his dismay. Where Will the Bullet Guide Justice?

Due to their mutual disdain of each other, Medic put off restoring Brain's body, leaving him stuck as a Core following her for the time being. In this reduced state, Brain was a witness to Medic's secret experiment with the Cook Roidmude to induce Over Evolved in the Roidmudes, which resulted in several losses. Noting that Heart would not be happy to find out what Medic was doing, Who is Aiming for the Ultimate Taste? Brain later gloated to Medic that she had lost Heart's trust after he revealed his knowledge of her deception, all the while pestering her to restore his body, and his Over Evolved with it, provoking her anger into shutting him up. Why is the Devil Still Seeking Evolution?

Despite his ordeal of being reduced to a Core, Brain's prior achievement of Over Evolved as well as his survival of his body's destruction in battle against the Riders, whereas Freeze before him was eliminated by Drive, made him destined to soon be restored and join the Promised Number, a collection of four Over Evolved Roidmudes, as revealed by Heart when he became the next to achieve Over Evolved. Why is the Devil Still Seeking Evolution?

His body was later restored (through a new Viral Core) by Medic. Roidmude 006 visited both of them delivering his message about Tornado's demise and his possible intention to getting evolved into Over Evolved, leaving only one left to attain it soon. Why Are the Two Genius Scientists Having a Conflict?

Brain realizes how deeply his personality was shaped via his contact with Kineta.

He is very annoyed when Medic was petting a dog, while patrolling on Misuzu Hatori, whom Special Investigation Unit found and was in contact with the hospital. Until the arrival of a now evil Drive Driver form of Banno, who took control of Medic and tried to kill his own son, but luckily, Heart and Chase arrived to ambush and destroy Banno. A freed Medic told Brain to escape with the dog and split up to get away from Banno. While trying to escape, he spotted and observed 006 battling against Banno, until he is quickly killed by Banno, without destroying the Roidmude's body and Banno then used as a vessel for the mad scientist's manifestation into Kamen Rider Gold Drive. Banno later fought his son, Mach and easily overpowers him, due to inheriting an ability to steal the Riders' weapons and Signal Bikes/Shift Cars. Trying run away from Gold Drive's reign of terror, the dog pees on Brain's foot, causing him to scream with anger, but accidentally causes him to be spotted by Gold Drive for his use. How is the Golden Drive Born?

Brain's death

Heart then confronts Brain asking him where Medic went. Brain reveals that Banno had taken her, causing Heart to get mad. Brain asks for forgiveness, but Heart tells Brain to run so that Banno can never gather the four Promised Number. Where is the Truth About the Goddess? However, he gave himself in to Banno, which Heart felt livid about. Later after Gold Drive, Heart, Medic, and Brain transfer their energy to the Sigma Circular, the device then proceeds to overload and siphons off its energy to Medic as Banno intended, in order to cause Heart grief. Brain saves Medic by switching places with her using a device that removes the programming which stripped her of her will and made her the target for the siphoned energy. Brain's body cannot handle the energy well, and is engulfed in a giant explosion that affects everyone in the vicinity, both Roidmudes and humans alike. Medic and Heart reach over to Brain in his last moments, holding his hand and grasping onto his leg before he turns to dust with his core disintegrating not long after. Who Loves Heart the Most?

Post Series and other events

Secret Mission Type TOKUJO

Why Was Professor Banno Targeted during the Global Freeze?

As "Akira Kusakabe"

Brain killed and copied Akira Kusakabe, a Superintendent of Tokyo Metropolitan Police Department and used his identity to infiltrate the Special Investigation Unit. However, his purpose was be found and stopped by Shinnosuke Tomari. Why Was Professor Banno Targeted during the Global Freeze?

Kamen Rider Drive: Final Stage

Type Technic (Brain).png

Brain was revived by Roidmude 108 in the Final Stage. He later turn against Roidmude 108 and gain power from Shift Cars and transformed into Kamen Rider Drive Type Technic. Kamen Rider Drive: Final Stage

Super Movie Wars Genesis

Roidmudes back from the dead.

Brain returns alongside Heart and Medic in a black form due to the "butterfly effect" of Shinnosuke Tomari and Takeru Tenkuji time traveling to 2005. Kamen Rider × Kamen Rider Ghost & Drive: Super Movie Wars Genesis

Kamen Rider Heart

Brain and Medic's Cores are reincarnated as part of the revived Heart's body. During the emergence of Roidmude 5886, Brain helped Heart to access the power of Drive. However, because of Brain constantly arguing with Medic, Heart only able to transform into a feeble Drive Type Speed, Wild, Technic. During the second confrontation with 5886, Brain suggests that in order to Unlock Heart true potential as Kamen Rider, he and Medic need to override the Drive Driver system, at the cost of their lives. Heart agreed on this and he transformed into Drive type Miracle. After 5886 was defeated, their core disintegrated. However, before departing to the afterlife, Brain jokingly states that the next time they revived, he'll become the Kamen Rider. Drive Saga: Kamen Rider Heart

Kamen Rider Build: Be The One

In an event witnessed by Sento Kiryu, Over Evolved Brain was among numerous monsters whom engaged the first 18 Heisei Riders before being wiped out by the Vortex Time Break of Kamen Rider Zi-O BuildArmor. Kamen Rider Build: Be The One

Kamen Rider Brain

During the events of Kamen Rider Heart, Brain jokingly mentioned that he'll become Kamen Rider next time. However, thanks to the Mu organization searching for someone with a 600 IQ, Brain was fully reconstructed. As the Leader of Mu prepares to erase his memories, a blackout happened and Brain himself was saved by Crystal Peppler, with the former experiencing Deja Vu after seeing Peppler. Brain later found a Driver, tied in his handkerchief out of the blue. As Mu prepare to execute Peppler for his apparent betrayal, Brain transformed into his Over Evolved Roidmude form to fight them to no avail. As Brain fell to his apparent death, he miraculously appeared once more, now transformed into Kamen Rider Brain. As Kamen Rider, Brain manages to defeat most of the Mu members, save for the Leader. Brain later escapes with Peppler on his motorcycle.

Later however, Peppler jokingly reveals that he deliberately chose Brain because he was weak and didn't want to risk making Mu even more powerful, and that rather than a 600 IQ, he has 600 gigabytes of memory. While a stunned Brain absorbs this information, Peppler is kidnapped by Oogumo Great Leader, who runs the professor through with his swords. Before he dies, Peppler reveals to Brain that Mu's ultimate goal is the destruction of individuality, making them exactly the kind of people Brain hates the most, and explaining that this was the real reason he chose Brain to become a Rider. Motivated by his friend's death, Brain transforms and defeats Mu's Dark Riders and Oogumo Great Leader before returning to the laboratory to confront the Leader of Mu. However, at this point Brain wakes up in a white datascape with Heart and Medic, revealing that these events were just a dream Brain was having while the Executive Roidmudes' data was being compiled sometime after the events of Kamen Rider Heart. Drive Saga: Kamen Rider Brain

Kamen Rider Zi-O: Over Quartzer

OQ Brain.png

Brain, as Kamen Rider Brain, was one of the Kamen Riders who appeared from the people's memories of Heisei Riders, during Sougo's battle against Kamen Rider Barlckxs. Brain helped defend the citizens from Barlckxs' invading forces.

Video game appearances

Kamen Rider Megaton Smash

Brain appears as a boss in Kamen Rider Megaton Smash, among other villains.

Kamen Rider Riderbout

Brain appears as a boss in Kamen Rider Riderbout, Brain is seen in the game in his Over Evolved Form

Kamen Rider Buttobasoul

Kamen Rider Brain medal

Kamen Rider Brain is a playable character in Kamen Rider Buttobasoul.


"I must redeem myself by any means necessary! How dare there be someone more useful to Heart than me?! Curse you Medic!"
―Brain gets nervous.[src]

As his name suggests, Brain is the most intelligent of the Roidmudes. However, he is arrogant and considers most other Roidmudes to have rude and ignorant personalities. Aside from his cold personality, he is also calculative, as shown when used a venomous neurotoxin powerful enough to kill Drive had he not been using the Mad Doctor Shift Car. He also has shown signs of being somewhat sadistic, as indicated by his laughter when pitting Mach against Drive and Chaser. Brain often uses sets of three adjectives to describe things.

Ironically, despite his brain motif and cool-headed outlook, he can easily become nervous whenever someone (particularly Medic) does a better job than him. This is displayed in several occasions, for example when Medic did a better job at reprogramming Chase by altering a portion of his base program, thus earning Heart's respect. Who Will Control Deadheat? This results in Brain developing a sense of jealousy towards Medic, and he constantly tries to find flaws in her personality in order to redeem himself and regain his comrade's respect. When Did Kyu Saijo Become a Roidmude? Brain's jealousy is further enhanced later after he synched with Mitsuhide Nira.Who Claimed the Life of Eisuke Tomari? Brain also has a habit of taking out his handkerchief whenever he becomes nervous. It is implied that he treasures his possessions a lot, and losing them would severely affect his emotions. How Can I Use the F1 Body to Fight? When he sided with Gold Drive to manipulate Medic and caused her to become his puppet, Brain becomes troubled by his sense of guilt, especially when Heart was the person who was mostly affected by this. Combined with his determination to save Medic, Brain proved his devotion to Heart by sacrificing himself to save her, at the same time redeeming himself. Heart and Medic were heartbroken from this, while the Kamen Riders (including Go himself) became disgusted at Banno for causing Brain's death. Who Loves Heart the Most?

According to Freeze, Brain's special emotion is "envy".

In Drive Saga: Kamen Rider Brain, Brain has shown a significant difference in personality. He no longer shows signs of malice as he had previously done, Brain even became joyous at being a Kamen Rider in his dream, to the point of cheerfully telling Heart and Medic as they were being revived by Go Shijima/Kamen Rider Mach.


Core (003)

The Core is the basic essence or 'soul' of the Roidmude. Brain was left reduced to this state for sometime after his Over Evolved body was destroyed by the three Kamen Riders, with his core barely managing to escape, only for Medic to "play" with it, much to his dismay. Where Will the Bullet Guide Justice? Though Medic deliberately put off giving him a new body due to focusing on her own agenda as well as their mutual disdain for each other, Who is Aiming for the Ultimate Taste? Why is the Devil Still Seeking Evolution? When Will the Whirlwind Kidnapper Attack? Brain was eventually restored under Heart's wish to gather the Promised Numbers. Why Are the Two Genius Scientists Having a Conflict? Later, after sacrificing himself to save Medic, his body disintegrated safely along with his core. Who Loves Heart the Most?

Appearances:Drive Episodes 36-39, 41, 43-44,Drive Saga: Heart

Roidmude 003

Plain Roidmude (Bat Type)

  • Height: 210cm
  • Weight: 97kg
Powers and Abilities
Heavy Acceleration
The signature ability of the Roidmude is to somehow slow down the movement of surrounding objects', including that of humans, with their unaffected consciousness aware of their impass during this time. One can be protected by the Heavy Acceleration effect by carrying Shift Cars or Signal Bikes on their person.
Energy Attack
Plain Roidmudes all have machine-gun-like fingers from which they can fire energy bullets. This feature is forsaken for greater power upon evolution into an Advanced Roidmude.
Advanced Camouflage
Roidmudes can generate disguises through film-layers around their body that function similar to the cerebral cortex.
Data Mimicry
Roidmudes can transform their bodies into data to travel within the electricity/cyberspace while in their Core modes. They can as well temporarily morph their bodies into data to easily phase through solid objects.
Bat Type Plain Roidmudes have the power to form wings from their back, allowing them to fly. This feature is forsaken for greater power upon evolution into an Advanced Roidmude.
Neo Viral Core (ネオバイラルコア, Neo Bairaru Koa)
Using the Bat Neo Viral Core, Roidmude 003 can fuse with humans into a Fusion Evolution State Advanced form. Once he synchronize with a human, he would only communicate with his host via his number plate on the chest, acting as their advisor.

Brain Roidmude

Advanced Roidmude (Brain)

  • Height: 200cm
  • Weight: 120kg

While Brain might not be a Roidmude that likes direct combat, Brain is able to make a powerful neurotoxin that can meld through armoring to infect the person he wants.

Powers and Abilities
Heavy Acceleration
The signature ability of the Roidmude is to somehow slow down the movement of surrounding objects', including that of humans, with their unaffected consciousness aware of their impass during this time. One can be protected by the Heavy Acceleration effect by carrying Shift Cars or Signal Bikes on their person.
Advanced Camouflage
Roidmudes can generate disguises through film-layers around their body that function similar to the cerebral cortex.
Data Mimicry
Roidmudes can transform their bodies into data to travel within the electricity/cyberspace while in their Core modes. They can as well temporarily morph their bodies into data to easily phase through solid objects.
He can generate neurotoxin that can inflict serious pain and cause the certain death without special medical treatment. He can also create another variant of this neurotoxin, which he used to sabotage Chase's firewalls and reawaken a little of his original memories as Protodrive. He can also upload this ability to other Roidmudes, as shown where he puts in several drips of the toxin in Shoot Roidmude's Viral Core to give him some portion of his power.
Technology Manipulation
Brain can manipulate certain technologies to his liking simply by tapping his glasses. As shown, he turned an iPad into a GPS system which used to track Roidmude 029. He has likely kept it with him to use it as such for other Roidmudes.
Energy Blast
He can fire a green energy blast from his palm. One blast is strong enough to shatter a Roidmude's human disguise.
Fire Ball Projection
He can attack his enemies by throwing fire balls at them. It is strong enough to free a frozen Roidmude.
Energy Physiology
He can turn his body into a green aura to travel.
Memory Erasure
Through an unknown method, Brain can erase and reboot any Roidmudes that went rogue or disobey their orders. Some like Chase/Proto-0 were hard to be erased due to his base program.
Jealousy Empowerment
As stated by Freeze, every Roidmude can empower their symbolic emotions to achieve evolution/Over Evolved and beyond. In Brain's case, he can empower himself with jealousy emotions.
Brain has a modified tablet in his possession (stolen from a bystander in episode 2) which used to detect Roidmudes and keeping their Cores for a reset rather than using it in his own power. The tablet as well housed the consciousness of Dr. Banno, whom was forced to reset rogue Roidmude Cores for Brain until his son, Go rescued him after he fakes his defection.
Appearances: Drive Episodes 2, 5, 11, 14-15, 21, 27, 29, 31-34.

Brain Roidmude (Over Evolved)

Over Evolved Roidmude (Brain)

  • Height: 200cm
  • Weight: 120kg

After Brain absorbed Mitsuhide Nira's emotion of jealousy, he is able to evolve into his Over Evolved Roidmude form. This is indicated by yellow accents over his body.

Powers and Abilities
Heavy Acceleration
The signature ability of the Roidmude is to somehow slow down the movement of surrounding objects', including that of humans, with their unaffected consciousness aware of their impass during this time. One can be protected by the Heavy Acceleration effect by carrying Shift Cars or Signal Bikes on their person.
Global Freeze Creation
Once all four Promised Number gathered in one place, they can recreate Global Freeze.
Advanced Camouflage
Roidmudes can generate disguises through film-layers around their body that functions similarly to the cerebral cortex.
Data Mimicry
Roidmudes can transform their bodies into data to travel within the electricity/cyberspace while in their Core modes. They can as well temporarily morph their bodies into data to easily phase through solid objects.
Jealousy Empowerment
As stated by Freeze, every Roidmude can empower their symbolic emotions to achieve evolution/Over Evolved and beyond. In Brain's case, he can empower himself with jealousy emotions.
Enhanced Toxigenesis
After Brain assumes Over Evolved, he is capable of creating an even more dangerous neurotoxin. The poison released is even more powerful than a normal neurotoxin created in his regular Advanced form, even with Shift Mad Doctor Car left useless, though the effect is slower compared to normal ones.
By summoning golden aura, Brain can perform numerous ESP abilities.
Psychic Explosion
Brain is able to create explosions instantly on his targets.
Energy Shield
Brain can create a golden energy barrier as a defensive method.
Brain is capable of lifting opponents in mid-air.
Psychic Wave Projection
Brain can unleash a golden wave as an attack.
Energy Blast
Brain is able to fire a golden energy blast from his palm.
Energy Cyclone Creation
Brain can generate golden energy cyclone to cover himself from explosions.
Brain can channel lightning bolts and launch them to the sky to attack desired targets.
Thick Hide
Thanks to Over Evolved, Brain's skin is capable of resisting normal firearms and weaponry.
Poisonous Tentacles
Brain can unleash poisonous tentacles which are as powerful as Medic's version.
Data Manipulation
The Over Evolved Brain can manipulate data strips, which he used to steal a supercomputer memory and upload it into a stolen iPad. He also used this to strip Medic off from Gold Drive's programming, thus saving her, but at the cost of his own life in jeopardy.
Copy Creation
The Over Evolved Brain can create identical lifeless copies of anyone he desires. He used this once to help Heart, Chase and himself escape death from Angel Roidmude.
Appearances:Drive Episodes 34-36, Drive Saga: Chaser, 43-44, Super Movie Wars Genesis, Kamen Rider Brain

Thief Roidmude

Thief Roidmude with Brain in charge.

  • Height: 216 cm
  • Weight: 136 kg

Due to Roidmude 106's death, Brain uses a Neo Viral Core and fuses with Mitsuhide Nira to temporarily become the second Thief Roidmude (シーフロイミュード, Shīfu Roimyūdo). It is in this form that Brain is able to absorb Nira's emotions of jealously, allowing him to attain his Over Evolved State.

Brain's version of Thief Roidmude is greater than 106's, due to the fact that during synchronization, his advanced form's power was added as well to boost it's capability, followed by his Over Evolved State.

Powers and Abilities
Heavy Acceleration
The signature ability of the Roidmude is to somehow slow down the movement of surrounding objects', including that of humans, with their unaffected consciousness aware of their impass during this time. One can be protected by the Heavy Acceleration effect by carrying Shift Cars or Signal Bikes on their person.
Advanced Camouflage
Roidmudes can generate disguises through film-layers around their body that function similar to the cerebral cortex.
Data Mimicry
Roidmudes can transform their bodies into data to travel within the electricity/cyberspace while in their Core modes. They can as well temporarily morph their bodies into data to easily phase through solid objects.
Thief is capable of running in a blinding speed.
Arm Hook
Thief Roidmude has a giant hook as a left arm.
Retractable Hook
The giant hook is capable of stretching from ranged distance.
Energy Hook Blast
The giant hook can charge and unleash a hook-shaped energy blast.
Energy Hook Boomerang
Thief can generate energy hook as makeshift boomerang.
Object Absorption
Thief Roidmude can absorb stolen items into his body.
After Brain becomes the next Roidmude synchronize, Thief is capable of using toxic-based abilities. The poison released is even more powerful than a normal neurotoxin created by Brain in his regular Advanced form, even with Shift Mad Doctor Car left useless. Among them are:
Poisonous Tentacles
Thief can generate tentacles to capture a target. These tentacles also carries dangerous neurotoxin that capable of killing the target in several hours.
Poison Gas Generation
From his mouth, Thief can release poisonous gases for smokescreen purposes.
Appearances: Drive Episodes 34-36

Kamen Rider Brain

Kamen Rider Brain

"Start your engine! Brain the Kamen Rider!"
―Transformation announcement[src]

In his dream in Drive Saga: Brain, using Brain Driver and Shift Brace, Brain transformed into a Kamen Rider. Later, due to unknown circumstances, he is able to use this form in reality in Kamen Rider Zi-O: Over Quartzer.

Powers and Abilities[1]

Kamen Rider Brain is able to generate over 999 types of toxicants on his hands. He can use this ability to perform Rider Poison Hand (ライダー毒手, Raidā Dokushū) and Poison Handkerchief (ポイズンハンカチーフ, Poizūn Hankachīfu) to poison enemies and kill them.

This form's Full Throttle finisher is the Brain Head Crusher (ブレンヘッドクラッシャー, Burenheddokurasshā), where Brain concentrate poisons from his leg and then transfer them to the top of the helmet to delivers a powerful headbutt.

Appearances: Kamen Rider Brain, Over Quartzer

Type Miracle

Type Miracle

"Drive: Type Miracle! (Dramatic rock guitar solo) Heart the Kamen Rider!"
―Transformation announcement[src]

Type Miracle (タイプミラクル, Taipu Mirakuru) is the default form of Heart's Kamen Rider form known as Kamen Rider Heart (仮面ライダーハート, Kamen Raidā Hāto), accessed through the Drive Driver and the Heartron Shift Car, once Brain and Medic fuse their cores into the Drive Driver, allowing Heart to use Shift Heartron's power at maximum.

Since Brain & Medic's cores were also resurrected in Heart's body, Brain is able to briefly utilize Heart's body.

This form is based off Kamen Rider Drive's Type Tridoron, due to Shift Heartron resembling Shift Tridoron. This form also has the ability to execute a Viral Blending (バイラルカキマゼール, Bairaru Kakimazēru), which allows Heart to use the powers of Brain, Medic and his own.

  • Medic: Heart uses an electric golden tentacle to restrict and shock the enemy.
  • Brain: Heart uses a toxic green tentacle to restrict and poison the enemy.
  • Heart: Heart enters the Dead Zone, increasing his power.

Although this form is called Kamen Rider Heart, it is technically a form belonging to the Drive System due to its use of the Drive Driver.

A major downside of this form would be that the amount of energy used is extremely dangerous, proving to be too much for the three Roidmudes' Cores and causing them to fade away once more after that.

This form's Full Throttle finisher is Heartdrop (ハートドロップ, Hātodoroppu)[2], simillar to Drive Type Tridoron's Tridrop, where Heart focuses Dead Zone's power into his body then his right leg, making it glow red flame energy as he slams into the enemy with a flying kick.

This form is exclusive to Kamen Rider Heart.

All versions of this Type bear a Shift Tire around Drive's upper chest. While changing Shift Cars, dynamic music plays.

Type Technic Pre-Tire

This version of Type Technic is briefly seen during both Drive's transformation and Tire Exchange, the latter specifically after the previous Shift Tire is ejected and before the new Shift Tire gets attached in its place.

Type Technic

Type Technic

"Drive: Type Technic! (Dynamic music)"
―Transformation announcement[src]
  • Height: 203 cm.
  • Weight: 110 kg.

Ability Perimeters:

  • Punching power: 7.2 t.
  • Kicking power: 11.2 t.
  • Maximum jump height: 26.1 m.
  • Maximum running speed: 100 m. per 7.4 sec. (27.64 mph)

Type Technic (タイプテクニック, Taipu Tekunikku) is Drive's garbage truck-based form. Accessed through the Shift Technic Car, this form bears the Type Technic Tire (タイプテクニックタイヤ, Taipu Tekunikku Taiya).

This form is exclusive to Kamen Rider Drive: Final Stage.



  • Brain Driver - Belt-based transformation device, but its variant is similar to Banno Driver.
  • Shift Brace - Bracelet-based transformation device
  • Shift Cars - Gives access to Drive's forms and powers, depending on which car is used.



Behind the Scenes


Brain is portrayed by Shota Matsushima (松島 庄汰, Matsushima Shōta). His suit actors are Daisuke Satō (佐藤 太輔, Satō Daisuke) for Brain Roidmude and Kosuke Asai (浅井 宏輔, Asai Kōsuke) for Kamen Rider Brain. While disguised as Akira Kusakabe, he is portrayed by Jun Yamasaki (山崎 潤, Yamasaki Jun).

Concept Art

Brain was designed by Takayuki Takeya (竹谷 隆之, Takeya Takayuki).


His human identity's name pronunciation Noumi Sou is a homonym of the Japanese word No Miso (脳みそ, Nō Miso, lit. "Brain Fluid"). "Mi" is also a part of "mitsu" (みつ), another way of pronouncing "3", which is Brain's original number designation.

Drive Saga: Kamen Rider Brain

Kamen Rider Brain April Fools Joke.jpg

In an April Fools' joke for 2017, the official Kamen Rider Drive Twitter announced a V-Cinema "Drive Saga: Kamen Rider Brain" (ドライブサーガ: 仮面ライダーブレン, Doraibu Sāgā: Kamen Raidā Burein) which will be released in 2035, throwing back to Brain's line about being the next to become a Kamen Rider at the end of Kamen Rider Heart. The joke post was made to commemorate the closure of the account. Two years later, however, it was confirmed that there will be a 2-part web series on Toei Tokusatsu Fan ClubIcon-crosswiki.png. Shota Matsushima starred in this 2-part web series as Kamen Rider Brain.[3][4]


  • In spite of his name and calm and collected nature at first, Brain later seems to have emotional outbursts when Medic gets close to Heart.
  • Brain is the first Roidmude to attain all three Evolution States of Advanced Roidmudes.

Farewell Brain Games.jpg

  • Most of the Kamen Rider games have provided relevant projects to commemorate Brain's death. These games include Kamen Rider Break Joker, Kamen Rider Storm Heroes, Kamen Rider Megaton Smash, and Kamen Rider Riderbout.
  • Unlike previous green-colored generals, he didn't betray and murder his superior for power at all, instead, he remained loyal to most of his superiors, though he did betray Banno in the end, not for a selfish reason like most green-colored generals.
  • Kamen Rider Brain's design is a recolored version of Protodrive and Gold Drive, but adding his cape, and his belt is similar to Banno Driver.
  • According to the first part of the Kamen Rider Brain web series, Brain has an IQ of 600 which is equal to Takeshi Hongo.
    • However, it was revealed by Crystal Peppler in the second part that this actually means his brain size is only 600 gigabytes, even smaller than a modern hard disk drive.



External Links


Icon-drive.png Kamen Rider Drive
Kamen Riders
TV Series: Shinnosuke Tomari - Go Shijima - Chase - Tenjuro Banno - Kamen Rider Mach Production Model (Jun Honganji, Genpachiro Otta)
Movie/Special/Stageshow-exclusive: Zoruku Tojo - Kyoichiro Kuroi - Kamen Rider 4 - Paradox Roidmude - Heart - Brain
Transformation Devices:
Drive Driver - Mach Driver Honoh (Production Model) - Lupin Gunner - Break Gunner - Kamen Rider 3's Typhoon - Kamen Rider 4's Typhoon - Banno Driver
Transformation Gear
Shift Brace - Shift Cars - Signal Bikes - Viral Cores - Tridoron Key - Tokujo-ka Key
Handle-Ken - Door-Ju - Trailer-Hou - Zenrin Shooter - Shingou-Ax - E-Circular - Blade Gunner - Brain Megane Blade
Tire Specific Items
Justice Cage - Cure Quicker - Ladder Expander - Rumble Smasher - 10-ton Weight - Drum Shields - Frostreamer - Monster - Capture Hook - Jacky Riser - Grasper Claw
Tridoron - Ride Booster Set (Red/Blue) - Proto Tridoron - NEXTridoron - Ride Macher - Ride Chaser - Ride Crosser - TriCyclone - Sky Cyclone - Ride Braiser
Core Driviars - Heavy Acceleration Particle Measuring Device - Heavy Acceleration Reducing Machine - Anti-Roidmude Bullets - Rear Cowl Boots -
Special Investigation Unit
Kiriko Shijima - Krim Steinbelt - Jun Honganji - Genpachiro Otta - Rinna Sawagami - Kyu Saijo
Unofficial Members: Roidmude 072 - Go Shijima - Chase - Mitsuhide Nira (defected)
Other allies
Akira Hayase - Harley Hendrickson - Kyoichiro Kuroi - Eisuke Tomari - Eiji Tomari - Ninningers - Ryu Terui - Takumi Inui - Yuto Sakurai - Sakuya Tachibana - Kamen Rider Blade - Kamen Rider Chalice - Kamen Rider Leangle
Creator: Tenjuro Banno
Generals: Heart - Brain - Chase (defected) - Medic - Freeze - Krim Steinbelt (copy) - Roidmude 005 - Roidmude 006 - Tornado - Paradox
Minor Advanced Roidmudes: Reaper Legion - Iron Roidmude - Paint Roidmude - Crush Roidmude - Scooper Roidmude - Volt Roidmude - Gunman Roidmude - Voice Roidmude - Judge Roidmude - Shoot Roidmude - Shocker Buruburu - Angel Roidmude
Fusion Evolved State: Sword Roidmude - Seeker Roidmude - Open Roidmude - Cook Roidmude - Thief Roidmude
Unofficial: Mitsuhide Nira - Sigma Circular
Other villains
Zoruku Tojo - Imitation Drive - Kibaoni Army Corps - Shocker - Neo Shade - Gamma (Da Vinci Gamma)
Mu:Leader of Mu
Executive :Shocker Leader III
Kamen Riders :Kamen Rider Dark Kiva - Kamen Rider Poseidon - Kamen Rider Wiseman - Kamen Rider Duke - Kamen Rider Dark Ghost - Kamen Rider Another Para-DX
Monsters :Cancer Zodiarts - Gremlin - Demushu - Gamma Superior - Graphite
Icon-zi-o.png Kamen Rider Zi-O
Kamen Riders
Sougo Tokiwa (Over Quartzer) - Geiz Myokoin (Over Quartzer) - Woz (Black, (Over Quartzer), White, Red) - Tsukuyomi (Over Quartzer)
Other Sougo Tokiwa variations
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Other Riders
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Movie-exclusive Riders
SOUGO Tokiwa - Kagen - Jogen - Soreo Hiden
Stageshow-exclusive Riders
Hiryu Kakogawa - Red Woz
Transformation Devices
Ziku-Driver - Ohma Zi-O Driver - Beyondriver - Miraidriver (Shinobi, Hattari, Quiz, Kikai, Ginga) - NeoDecadriver - NeoDiendriver - K-Touch 21
Ridewatches - Miridewatches- Ridewatch Holder - Ridewatch Daizer - Faizphone X - Taka Watchroid - Kodama Suika Arms
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9 5 DO: Geiz Myokoin - Tsukuyomi - Junichiro Tokiwa
Futaros - Ataru Hisanaga - Shingo Hisanaga - Iroha Kagura - Master Gamano - Sara - Ms. Sailor - Oda Nobunaga - Clara Steinbelt - Gyuzo - Pietro - Resistance Captain
Legend Riders
Kamen Rider: Takeshi Hongo
Kuuga: Yusuke Godai
Agito: Shoichi Tsugami - Takahiro Omuro
Ryuki: Shinji Kido - Dark Shinji - Ren Akiyama - Takeshi Asakura - Miyuki Tezuka - Jun Shibaura - Goro Yura
555: Takumi Inui - Masato Kusaka
Blade: Kazuma Kenzaki - Hajime Aikawa
Hibiki: Hitoshi Hidaka - Tomizo Todayama - Kyosuke Kiriya
Kabuto: Soji Tendo - Arata Kagami - So Yaguruma
THE FIRST/THE NEXT: Takeshi Hongo - Katsuhiko Yano - Shiro Kazami
Den-O: Ryotaro Nogami - Yuto Sakurai
Kiva: Wataru Kurenai - Jiro
Decade: Tsukasa Kadoya - Daiki Kaito - Yusuke Onodera - Natsumi Hikari
G: Goro
W: Philip & Shotaro Hidari - Ryu Terui
OOO: Eiji Hino - Michal Minato - Akira Date - Shintaro Goto
Fourze: Gentaro Kisaragi
Wizard: Haruto Soma - Kosuke Nitoh
Gaim: Kouta Kazuraba - Kaito Kumon - Takatora Kureshima
Drive: Shinnosuke Tomari - Go Shijima - Chase - Brain
Ghost: Takeru Tenkuji - Makoto Fukami
Kuuga (manga): Yusuke Godai
Amazons: Haruka Mizusawa - Jin Takayama
Ex-Aid: Emu Hojo - Hiiro Kagami - Kiriya Kujo - Kuroto Dan - Masamune Dan
Kamen Sentai Gorider: Aka-Rider - Ao-Rider - Ki-Rider - Momo-Rider - Mido-Rider
Build: Sento Kiryu - Ryuga Banjo - Kazumi Sawatari - Gentoku Himuro - Evolto
Zero-One: Aruto Hiden - Isamu Fuwa - Yua Yaiba - Jin - Horobi
Saber: Touma Kamiyama - Rintaro Shindo - Kento Fukamiya - Ryo Ogami - Ren Akamichi - Tetsuo Daishinji - Yuri - Reika Shindai - Ryoga Shindai
Chuta Ohsugi - Daita Kondou - Chikao Nezu - Hina Izumi - Shibuya Hachioji - Narita Kisarazu - Misora Isurugi - Master of Fumen - Owner - Momotaros - Urataros - Kintaros - Ryutaros - Eri Ogawa - Daisuke Okubo - Amane Kurihara - Mana Kazaya - Riki - Ramon - Deneb - Krim Steinbelt - Takeshi Kinashi - Izu - Shesta - Jun Fukuzoe - Sanzo Yamashita - Narutaki
Time Jackers
Swartz - Heure - Ora
Movie Exclusive
Tid - Finis
Kamen Riders: SOUGO Tokiwa - Kagen - Jogen - Woz
Another Riders
Another Build - Another Ex-Aid - Another Fourze - Another Faiz - Another Wizard - Another OOO - Another Gaim - Another Ghost - Another Double - Another Den-O - Another Kuuga - Another Shinobi - Another Quiz - Another Ryuga - Another Kikai - Another Zi-O (II) - Another Ryuki - Another Blade - Another Agito (troops) - Another Hibiki - Another Kiva - Another Kabuto - Another Drive - Another Decade
Movie-exclusive Another Riders
Another Zero-One - Another 1 - Another Diend
Stageshow-exclusive Another Riders
Another Rider - No Rider - Another Ohma Zi-O
Novel-exclusive Another Riders
Another Ohma Zi-O Trinity - Another Tsukuyomi - Another Geiz - Another Woz
Other Villains
Kasshine - Humanoise - Worms - Elementary Inves - Trilobite Magia - Battle Magia
Niji no Hebi: Yaminin - Dustards