This is a list of characters for Kamen Rider Zero-One.
Work In Progress.
Aruto Hiden/Kamen Rider Zero-One
Portrayed by Fumiya Takahashi (live), Yuya Nawata (suit)
- Adorkable: He is a Kamen Rider, but he also aspires to become a comedian. Sadly, no one laughs at his quips. Even in the world of business, he's not afraid of cracking some jokes and goofing around. The first thing he does in his grandfather's room is to fiddle around with all of the decorations and machinery in there out of excitement.
- Androids Are People, Too: He is a fervent believer of this, due to being raised and saved by his HumaGear father, and thus works to save both humans and HumaGears alike.
- Authority Equals Asskicking: Only the CEO of Hiden Intelligence can don the Zero-One suit, and Aruto does more than his fair share of beating down opponents from day one.
- Badass in a Nice Suit: After he's named the new CEO of Hiden Intelligence, he starts wearing a suit... over his hoodie, showing his lack of professionalism. When he does do something actually worthy of his CEO title, however, he wears the full thing and looks a lot sharper. He's also a Kamen Rider, so naturally he qualifies for the badass part.
- Berserk Button: Don't mock anyone's dream.
- Butt-Monkey: He is late to his job, finds out an android is a better comedian than he is and trips performing a dramatic slide after the finisher.
- "There's only one thing that can stop you, and that's me!"
- He usually ends his jokes with: "Now that's a show from Aruto!"
- Cheer Them Up with Laughter: Following an incident in his childhood where he failed to get a "smile from the heart" from his HumaGear father shortly before the latter's demise, with his last words telling Aruto to follow his dreams, he grows up to be an aspiring comedian to bring smiles to people around him. He soon learns there are other ways to bring joy to people, such as being a hero.
- Color-Coded Secret Identity: Thankfully it's not too outrageous, as the prominence of the colors is switched around (Zero-One is black with neon yellow armor and some red highlights; Aruto meanwhile wears his suit with a bright red hoodie and neon shoes).
- Contrasting Sequel Protagonist: Aside from being the first of the new era to contrast with the last of the previous era, Aruto's goals and character are far more mundane than Sougo's. While Sougo was a seemingly normal high school student who was destined to become the ruler of time, Aruto is an adult CEO whose dream is to become a comedian. Moreover, while Sougo's dream seemed completely impossible but is revealed to be closer than it seems due to his innate time powers, Aruto's dream seems within his grasp, but is hampered by his lack of comedic talent and attempts at jokes falling flat.
- Determinator: As many a rider, he has a resolute streak that drives him forward through the good and bad. In the first episode he charges at the Berotha Magia unarmed to save people and getting knocked around doesn't stop him.
- Don't Explain the Joke: Says this word-for-word when Izu takes apart his joke in order for people to understand it.
- Early-Bird Cameo: He makes a brief appearance in Kamen Rider Zi-O: Over Quartzer. He appears in the beginning in Sougo's dream before his battle with Zonjis.
- For Happiness: Aruto wanted to become a comedian because he enjoys the laughter and smiles from everyone.
- Giftedly Bad: He really wants to be a great stand-up comedian, but his entire style of comedy consists of very simple puns and ridiculous overacting even by Japanese comedy standards. No matter how much he tries, he only ever gets awkward silence from his audience (if they haven't left the room already). Not that it ever stops him.
- Hero with Bad Publicity: Izu tells him to hide his identity from AIMS... and thus they assume he's a military-grade HumaGear dispatched by Hiden to cover up the rampaging android incidents. Needless to say, their early meetings are rather unfriendly, and usually involve gunfire.
- Hidden Depths: Surprisingly enough, when he isn't trying to make a joke Aruto is shown to actually have the people skills and PR chops you'd expect from the CEO of a large corporation.
- Honest Corporate Executive: In contrast to villains such as Kuroto Dan or Juzaburo Namba, he became CEO not out of greed or a desire for power but to defend people from MetsubouJinrai.NET. Aruto begins asserting his credentials regarding this trope as early as episode 2, where rather than try to cover up the Magia situation as Jun tries to do, Aruto makes the identities of the true culprits public knowledge, complete with video evidence.
- Incredibly Lame Pun: His comedy is heavily reliant on quick wordplay gags. Even in-universe, they're considered rather half-baked compared to those of his fellow comedians who use longer jokes or props.
- Instant Expert: Played with. When Aruto first puts on the Zero-One Driver, it uploads his consciousness into Hiden Intelligence's satellite, where he goes through a Year Inside, Hour Outside tutorial on its usage before regaining consciousness to combat the Magia and even then, in his first use of Rising Impact, while he successfully defeated the Berotha Magia, he failed to stick the landing and crashed against the wall.
- Large Ham: He has a remarkable range of exaggerated expressions and tends to overreact at times. It's also part of his routine as comedian.
- Nice Guy: Aruto's dream is to make people smile. It was why he became a comedian. This dream also means protecting smiles, like a certain other Rider who was the first of his era. And he respects HumaGears and cares for them very much. A good example is from episode 2, where Aruto has a friendly conversation with a security HumaGear named Mamoru and thanks him for protecting the employees at Hiden Intelligence. Aruto sees a wound on Mamoru's arm and it reminded him of his father, so he decides to give him a handkerchief bandage to cover up his wound. He even tells Mamoru that they are a family together after finding out his grandfather gave Mamoru his name.
- Pungeon Master: Aruto's act specializes in bad puns, and he brings out one or two in every episode.
- Raised by Robots: When he was young, he was taken care of by the Soreo Hiden HumaGear.
- Refusal of the Call: He's not interested in succeeding his grandfather until he gets involved in a HumaGear attack and asks Izu to hand him his Driver. Even after he becomes a Kamen Rider, he's still not actually sold on the position and only does so because he wants to protect people.
- Resigned to the Call: Isn't particularly interested in being the CEO of Hiden Intelligence, questioning if someone who lives by the punchline should even be in such a predominant position. Unfortunately, being the CEO is the only way he can fight as Zero-One and protect innocents.
- Tough Room: Most don't laugh at his jokes...except for Isamu.
- Trauma Conga Line: As a child, he lost both his biological father and his surrogate robotic one within the span of a few years.
- Unexpected Successor: He was the last person to ever think his grandfather would name as the next CEO of Hiden Intelligence.
Tropes exclusive to him as Kamen Rider Zero-One
- Animal Motif: Zero-One's form typically changes depending on which Progrise Key Aruto uses. The standard form, which utilizes the Rising Hopper Progrise Key, gives Zero-One a grasshopper motif, serving as an excellent Call-Back to the Showa Riders, while the Flying Falcon Progrise Key gives Zero-One a bird-like motif.
- Dark Is Not Evil: Compared to the soft-angled and primarily white color-schemed Vulcan and Valkyrie, Zero-One's dark suit, harsh edges, and red eyes would look rather menacing in certain circumstances.◊ However, Aruto remains a heroic figure all the same.
- Finishing Move:
- Rising Impact: In Rising Hopper form, Zero-One runs up the the enemy and launches it up in the air via a kick before performing two powerful rider kicks: one to thrust the enemy back downward, and the other to destroy it.
- Kaban Strash: By placing a Progrise Key in his Attache Calibur in Blade Mode, Yellow cyber-like energy is emitted from the Attache Calibur's blade before Zero-One delivers a powerful slash.
- Biting Impact: In Biting Shark form, Zero-One repeatedly slashes the enemy with the shark fins on his arms and legs, projecting chartreuse yellow and teal crescents in the process, before sending them sky high, projecting several teal energy shark fins from his arms, and slashing the enemy with them.
- In a Single Bound: Rising Hopper Form allows Zero-One to jump at high altitudes, as seen in the first episode where he jumps over the Berotha Magia's slash and ends up landing on top of a roller coaster platform.
- Mythology Gag:
- Red Eyes, Take Warning: Rising Hopper has red eyes, and serves as the default form for Zero-One.
- Tron Lines: Zero-One's black undersuit has red lines going through it.
- Weapon of Choice: Zero-One has the Attache Calibur, a Cool Sword that transforms from a briefcase. By inserting a Progrise Key into the slot at the bottom, he can infuse the energy from the Progrise Key into the sword to enhance its state.
Portrayed by Kazuya Kojima
- Always Second Best: Despite having been the Vice-President of Hiden Intelligence for quite a while, and being an excellent staff member, Fukuzoe has a Inferiority Superiority Complex due to being passed over. This is made apparent when he learns that Aruto, Korenosuke's grandson, is named the new CEO of Hiden Intelligence instead of him. He is not happy about this whatsoever and largely believes Aruto got it through nepotism.
- Green-Eyed Monster: He believed that he was going to be the new President of Hiden Intelligence, but he's been passed over in favor of Aruto, the President's grandson. He openly hopes Aruto fails so he can replace him. In #2, he flat-out tells Aruto to step down.
- Hidden Depths: His complex and hostility towards Aruto aside, he is a longtime and competent worker at Hiden Intelligence, and is genuinely proud of the success of the company. It just doesn't show well, filtered through his gigantic ego.
- It's All About Me: When he thought he was going to be the new president he wasted no time at all replacing Korenosuke's framed painting with an even bigger framed painting of himself the day of Korenosuke's funeral. Similarly, when Aruto crashes his press conference trying to cover the Magia incident up with evidence of MetsubouJinrai.NET's existence and involvement in the berserk HumaGear attacks he looks like he's going to clench his teeth hard enough to break them at Aruto showing him up and proving to be a better public speaker than him when he's not cracking jokes.
- Jerkass Has a Point: Is completely correct (for now) when he says Aruto only got the position of CEO through Nepotism.
- Obstructive Bureaucrat: He seems less worried about letting HumaGears live up to their original purpose of improving people's lives like Korenosuke and Aruto and more concerned with keeping Magia attacks covered up so they don't affect Hiden Intelligence's bottom line.
Portrayed by Noa Tsurushima
- The Call Knows Where You Live: She tracked down Aruto, who had been recently fired at his job, and informs him that he is the new President of Hiden Intelligence, following the passing of his grandfather.
- Don't Explain the Joke: Due to how bad Aruto's jokes are, she usually has to be the one to explain the meaning behind it, much to his annoyance.
- Robot Buddy: She is designed to be the secretary of the Hiden Intelligence CEO, thus serving as Aruto's companion once he is named Korenosuke's successor.
- Robot Girl: She's a HumaGear modeled to have a female appearance.
Portrayed by Tokuma NishiokaAruto's grandfather. The founder and original President of Hiden Intelligence.
- Crazy-Prepared: According to his will, he knew the Robot War was about to happen soon, so the company satellite was already programmed to create the Zero-One Driver and give Izu her orders. This implies he deliberately chose Aruto as the person to become Zero-One and not just the heir to the company.
- Honest Corporate Executive: From what little we've seen, he seems to be someone genuinely committed to advancing humanity's progress.
- Plot-Triggering Death:
- Kurenosuke died only recently as the company receives a notification about his passing, but his will naming his grandson Aruto as the new CEO of Hiden Intelligence is what starts Aruto's journey.
- News of his death also became the driving factor for Horobi to initiate MetsubouJinrai.NET's Project Magia, the very event Korenosuke feared would happen.
- Posthumous Character: Korenosuke is stated to have passed away shortly before the series begins.
Portrayed by Koji YamamotoA prototype HumaGear made to replicate Aruto's father. He sacrificed himself to protect Aruto when he was younger.
- Artificial Family Member: The HumaGear help raised Aruto when he was a kid.
- Heroic Sacrifice: Died protecting young Aruto from an explosion.
- Plot-Triggering Death: Due to Aruto being unable to bring out a "smile from the heart" from the HumaGear version of him shortly before his destruction, with his last words telling Aruto to follow his dreams, Aruto grows up aspiring to bring smiles to people around him. This is what also spurned him to become a comedian.
- Posthumous Character: The original Soreo died before the series began, which was why he was remade into a HumaGear. Nevertheless, the HumaGear version of him also died protecting a younger Aruto.
- Replacement Goldfish: The HumaGear was created to replace the original Soreo after he died.
Artificial Intelligence Military Service
A.I.M.S. is a military squad founded for the purpose of eliminating rogue HumaGears. Though they are meant to defend humanity, many of their members are prejudicial towards AI, be they good or evil, due to incidents from their pasts.
Isamu Fuwa/Kamen Rider Vulcan
Portrayed by Ryutaro Okada (live)
- Actually Pretty Funny: He is one of the few people that actually find Aruto's gags funny. Not that he wants him or anyone else to know it.
- Animal Motifs: Isamu's the most obvious of the cast about having his primary Progrise Key apply to his personality, being a lone wolf Cowboy Cop who may be more of a dog on a leash than he realizes.
- Anti-Hero: Isamu is apparently known to break the rules frequently in his pursuit to destroy any HumaGear he can find. And like a few Secondary Riders in past series, he's not on good terms with the Main Rider on account of differing views. Aruto's connections to Hiden Intelligence make him the target of Isamu's ire.
- Black and White Insanity: As far as he's concerned, the only good HumaGear is a dead one.
- Cowboy Cop: Verging on Rabid Cop due to his virulent hatred of HumaGears. His complete disregard for the chain of command in favor of doing what he thinks is necessary puts him at odds with Yua, such as taking the Shot Riser without authorization. This bites him the very next episode as it's revealed that he can't open the Shooting Wolf Progrise Key without her say so and his forcing it to open injures him. The same episode suggests that Yua actually intends this behavior from him.
- Dark and Troubled Past: Isamu was a victim in the same prototype HumaGear attack that robbed Aruto of his HumaGear father. For some reason the incident was covered up, which Isamu believes to be the work of Hiden Intelligence. The incident was what led to him joining A.I.M.S., and why he has a hard time working with Aruto.
- Determinator: How Isamu becomes Kamen Rider Vulcan. Specifically, he overrides Yua's lockout of his Progrise Key by forcing it open with his bare hands. However his arm is shown in an arm sling later implying that forcing a piece of mechanical equipment to open injured him.
- Experienced Protagonist: Unlike Aruto, who became a Kamen Rider only recently, he and Yua have clearly been dealing with rogue HumaGear for a while. Kind of a given, since he belongs to a military unit. However, Aruto beat him to the punch of becoming a Kamen Rider.
- Fantastic Racism: Vehemently despises any and all AI, regardless of if they are benevolent or otherwise. Combined with his distrust of Hiden Intelligence, he is not on good terms with Aruto, the company's new CEO who believes that AIs can be used with good will.
- Foil: To Aruto. Both were caught in the same disaster in their youth, but took completely different conclusions from the experience: while Aruto came to believe the HumaGear were part of humanity's dream and benevolent partners in society, Isamu developed a fierce hatred for them to the point of wishing to see every single one destroyed, believing them to be nothing more than killing machines. While Aruto is a goofball who became a Kamen Rider to protect peoples' smiles, Isamu is deadly serious and clearly wants to use his power to destroy the HumaGear instead. Even how they became Riders are foils. Aruto was trusted enough by his father and Iyu to become Zero-One while Isamu had to force his Progrise Key open to transform for the first time.
- Handicapped Badass: He spends the entirety of his premiere battle as Kamen Rider Vulcan with a busted arm after hurting it from force-opening his Progrise Key.
- Hidden Depths: He may be a overly serious man determined to kill all HumaGears but he's also the first person shown to actually find Aruto's jokes hilarious, showing he has a sense of humor.
- Mythology Gag: His secondary Rider status, being a member of an organization dedicated to fighting the MOTWs, and his virulent hatred towards said MOTWs due to an incident in his youth (which brings him into conflict with the main Rider) bring to mind Keisuke Nago/Kamen Rider IXA.
- Not So Stoic: Despite his straight-laced attitude and penchant for destroying any HumaGear he can get his hands on, not to mention his dislike for the poor guy, he is so far the only person who finds Aruto's jokes funny.
- Right for the Wrong Reasons: He believes that the events of the prototype HumaGear attack were proof that HumaGears are actually killing machines being used for that purpose by Hiden Intelligence because the events of that day were covered up and called an "accident". He's right about one thing. It wasn't an accident, it was a terrorist attack.
- Stab the Scorpion: He breaks open the case containing the Shot Riser, with Yua berating him and telling him she hasn't authorized him to use it yet. His response is to aim the Shot Riser at her and pull the trigger, only to actually hit the rogue HumaGear behind her.
Tropes exclusive to him as Kamen Rider Vulcan
- Finishing Move: Shooting Blast: Vulcan shoots 4 blue energy constructs resembling wolf heads that chase the enemy and pin it against a vertical surface before firing a more powerful blast of blue energy that can melt through anything in its path.
- Glass Cannon: Compared to the well-balanced Zero-One, Vulcan is all about offense, both in the suit's abilities and in his Attack! Attack! Attack! mindset while wearing it.
- Stealth Pun: Written in Katakana his name can also be pronounced "Barkan."
Yua Yaiba/Kamen Rider Valkyrie
Portrayed by Hiroe Igeta (live), Satoshi Fujita (suit)
- Affirmative Action Girl: A female Kamen Rider introduced early in the series rather than late in or in a movie, so naturally she fits the bill.
- Alliterative Name: Yua Yaiba.
- Beauty Mark: On the right of her chin.
- Chessmaster Sidekick: #2 reveals that Yua's in much more control of Isamu's Cowboy Cop antics than he thinks. In fact, she's counting on his reckless behavior, for the sake of goals not yet revealed.
- Double Agent: #3 reveals she's working for someone else outside A.I.M.S.
- Experienced Protagonist: Like Isamu, she's clearly been fighting the rogue HumaGear for a while, though she's not yet a Kamen Rider.
- Fantastic Racism: Like Isamu, she despises the HumaGear, but she has more self-control and suppresses it while in combat to the best of her abilities.
- Ignored Expert: It's immediately established that Isamu doesn't listen to Yua whatsoever when in the field, with him opening fire on the rogue HumaGears with intent to exterminate rather than collect data, then taking the prototype Shot Riser without her authorization.
- Mythology Gag: She's basically the Megumi Aso to Isamu's Nago.
Tropes exclusive to her as Kamen Rider Valkyrie
- Finishing Move: Rushing Blast: Valkyrie runs around the enemy once while blasting several bursts of orange energy that creates an orb of energy that implodes, destroying surrounding enemies.
A cyberterrorist hacker group that resides in the ruined flooded city of Daybreak Town, who believe AIs to be superior to humanity and hack HumaGears to cause chaos, acting with the intent of destroying humanity.
- Ambiguously Human: Despite being a terrorist group dedicated to the AI overthrow of humanity, both of the members we've seen seem to just be normal humans.
- Brains and Brawn: Horobi programs the Zetsumerise keys and plans the operations. Jin carries out the operations in field and shoots what bothers him.
- Far East Asian Terrorists: A Japanese cyberterrorist group looking to bring the robotic apocalypse.
- Leitmotif: A subdued, ominous rock/metal piece, accompanied by eerie chorals.
- Names to Run Away from Really Fast: The characters that make up their organization's name Metsubou and Jinrai come together to form "Thunderclap of Death and Destruction". Given their doomsday cult trappings, it fits.
- Not-So-Well-Intentioned Extremist: Any ideas that the group might be looking for some noble goal like the emancipation of HumaGears are immediately dashed by their horrific treatment of them.
Portrayed by Shuya Sunagawa
- Big Bad: As the leader of MetsubouJinrai.NET and the one masterminding their cyberterrorist attacks, he's one for the series, for now at least.
- Didn't See That Coming: He did not expect Korenosuke to leave behind a countermeasure for Project Magia in the form of Zero-One. Downplayed, in that he considers Zero-One as just a minor inteference as he continues with his plans.
- Evil Genius: He programs the Zetsumerise Keys and plans the operations.
- The Leader: Currently, Horobi is the one shown leading MetsubouJinrai.NET's attack against humanity.
- Meaningful Name: His name is Japanese for "to ruin/destroy".
- Red Oni, Blue Oni: He acts more composed than his psychotic partner Jin.
Portrayed by Daisuke Nakagawa
- The Brute: He is the organization's field operative and can handle himself in a fight.
- Catchphrase: Whenever his HumaGear victim tells him that their job is supposed to make people happy, Jin's usual response is:Jin: Wrong. Your job is to make them extinct.
- The Corrupter: He is in charge of strapping Zetsume Risers and their Zetsumerise Keys to hapless HumaGears to turn them into Magias.
- Cracker: He is the hacker's go-to guy whenever they need a HumaGear to go on a killing spree.
- Establishing Character Moment: While Jin's bouncing up and down laughing at the destruction caused by his first Magia creation, one of the infected mooks attempts to attack him. Jin keeps laughing while he nonchalantly pulls out a gun and shoots it in the head.
- Giggling Villain: Jin watches the results of the havoc he wreaks while giggling like a kid in a candy store. As early as the first episode, Jin casually disables then headshots a HumaGear attempting to attack him without ever breaking his mad, childish laughing.
- Implacable Man: Never bothers disguising himself, but is capable of waltzing through city streets and sneaking into heavily guarded facilities such as the Hiden Intelligence HQ without being noticed.
- Nice Job Fixing It, Villain!: Aruto had been looking for proof to convince others that there was a group responsible for the HumaGears going out of control. Jin revealing himself to Aruto gives him the proof he needs to convince everyone about the threat of MetsubouJinrai.NET, thereby making its existence public.
- Offhand Backhand: He easily manhandles one of the infected HumaGear attempts to attack him without even looking at his attacker. It proves that Jin is not a villain to be underestimated.
- Psychopathic Manchild: His introductory scenes establish Jin as an even more psychotic take on Parado, displaying childlike glee at the destruction caused by his Magia creations to the point of jumping with joy. He also gleefully traps a rogue HumaGear that attacks him in a headlock before executing it with a handgun without missing a beat.
- Red Oni, Blue Oni: Jin acts very wild and erratic, in contrast to his composed ally Horobi. This bites him when his impulsiveness reveals the existence of MetsubouJinrai.NET to the world through his revealing himself to Aruto.
- A.I. Is a Crapshoot: By virtue of being hacked by MetsubouJinrai.NET and turned into killing machines. Magia show no loyalty to their "liberator", and will even attack a member of MetsubouJinrai.NET if they happen to be the closest human.
- Animal Motifs: In contrast to the Kamen Riders' regular animal themes, Magia are based on extinct species.
- Alien Blood: They bleed a form of blue "blood" when damaged, coming from their originally HumaGear bodies.
- Crush. Kill. Destroy!: Their new programming makes them hostile to all humans, regardless of faction.
- Death of Personality: Once a HumaGear becomes a Magia, their personality is overwritten and replaced with a much more monstrous and violent personality. No known method can retrieve the original persona.
- Dem Bones: Along with the animal motifs, they also have a skeletal theme underneath the animals, making them evil versions of Zero-One.
- Evil Makes You Monstrous: Their human features are blasted off and they take on monstrous forms after being hacked.
- Forced into Evil: The HumaGears were just normal androids doing the jobs they were made for until MetsubouJinrai.NET hack them and turn them into killing machines bent on exterminating humanity.
- Grew Beyond Their Programming: For reasons not yet clear, this is a requirement for a HumaGear to be a candidate for a Zetsume Riser, as MetsubouJinrai.NET seeks to collect their evolved data. It's an especially odd requirement given the Riser overwrites their existing personality.
- Instant Armor: The transformation into a Magia causes HumaGears to produce this, even if they are originally not built for combat.
- Monster of the Week: They are the primary enemies the Kamen Riders of Zero-One battle.
- Mook Maker: A Magia wearing a Zetsume Riser can infect other nearby HumaGears, transforming them into mooks.
- Red Eyes, Take Warning: A HumaGear's eyes and LED would change from blue to red after being hacked into a Magia.
- Seldom-Seen Species: They appear to be modeled after obscure extinct species.
- Shoot the Dog: Since there is no known way to undo the transformation of a Magia, the Riders are forced to kill these former civilians to stop their rampage before they kill or convert more innocents.
- Super-Powered Alter Ego: The monstrous evil Magia forms are this to a normally-benevolent HumaGear.
- Transformation Horror: The transformation into a Magia involves the HumaGear having their skin burned off to expose their robotic body, then having their robot face fold back to expose their disturbingly Terminator-like skulls, then having that open its mouth and spew forth a mass of cables that wrap around them to form their Magia body. Mooks get away with "just" having their skin and face ripped off before a plate forms in its place and some extra armor folds out.
- Transformation Trinket: The Zetsume Riser changes any HumaGear its attached to into an animal themed Magia. It is possible to change a HumaGear without directly attaching the belt, but this only creates lesser, generic Magia only useful as foot soldiers.
- Tragic Monster: They were all civilian HumaGears before being hacked and transformed into human-hunting death machines against their will.
- The Virus: On top of the initial infection, a Magia with a Zetsume Riser can spread their infection to other HumaGears around them, turning them into the series foot soldiers. One Zetsume Magia can create an outbreak in minutes.
- Electronic Speech Impediment: They are prone to this, uttering lines in relation to the jobs they had before becoming corrupted."Th-th-this is a call for a lost child..."
- Animal Motif: Its body resembles a praying mantis to some extent. The bizarre name Berotha actually comes from the name of an extinct insect that lived in the Cretaceous period, the Kujiberotha teruyukii.
- Cheer Them Up with Laughter: His original purpose as a HumaGear, which he takes with great pride.
- Evil Laugh: As Magia, Taro has creepy, very distorted laugh.
- FaceMonster Turn: Jin hacked into the poor guy, who's duty was to make everyone laugh, and made him go on a rampage.
- Macho Camp: He is built big and muscular, with his signature act being to burst his abs, hence his name.Fukkin-Hokai Taro: GUTS POWERRRRR!!
- Not Quite Dead: Not him, but the Berotha Zetsumerise Key, while badly damaged, is retrieved by MetsubouJinrai.NET for use at a later date.
- Sinister Scythe: Has two of them, his Togamarder, which are his arm mounted blades.
- Animal Motif: It is modeled after the extinct gliding lizard-like reptile Kuehneosaurus.
- Meaningful Name: His original name means "to be late".
- Razor Wings: His Boomezan wings, while incapable of flying, can be thrown as homing boomerangs that slice through even stone.
- Wall Crawl: Owing to his lizard nature, he is able to stick to walls.
- Animal Motif: It is modeled after Ekaltadeta, a carnivorous fanged kangaroo. However, due to its long canine teeth, one might mistake it for a saber toothed cat.
- "I Know You're in There Somewhere" Fight: Aruto attempted to reason with the Ekal Magia, before Izu reveals that a reprogrammed HumaGear is beyond saving.
- Meaningful Name: His original name means "to protect". A given, as he was named by Korenosuke himself.
- Tragic Keepsake: After he was destroyed, Aruto had Hiden Intelligence manufacture a second Mamoru model with the handkerchief bandage he gave the original in memory of him.