This article is about a/an rider in Kamen Rider Kabuto.
For the A.R. World version, see Arata.

"The man who washes his face in front of mirror everyday."
―Tendou's translation of Kagami's name.[src]

"The deity of war, Gatack's chosen one, Arata Kagami!"
Daigo's words as Tendou and Kagami protect him[src]

Arata Kagami (加賀美 新 Kagami Arata) is Kamen Rider Gatack (仮面ライダーガタック Kamen Raidā Gatakku, Masked Rider Gatack), one of the main protagonists of Kamen Rider Kabuto. He was previously the second user to become Kamen Rider TheBee (仮面ライダーザビー Kamen Raidā ZaBī, Masked Rider TheBee), but later decided to not fight Kabuto and gave up TheBee Zecter.

In 2019, the Kabuto Zecter comes to Arata's aid and allows him to briefly become Kamen Rider Kabuto (仮面ライダーカブト Kamen Raidā Kabuto, Masked Rider Kabuto) before Kabuto's powers are used to create the Kabuto Ridewatch.


He started out a low-level field agent of ZECT who's responsible for filming battles. He also works with Hiyori at Bistro La Salle. He has a good heart but is hot-blooded and will often act without thinking about the repercussions of his actions. During the first episode, Kagami attempted to become Kabuto with a Rider Belt but failed as the Kabuto Zecter had chosen Tendou. He joined ZECT in order to avenge his younger brother who was killed by Worms.

He was later confronted by Bellcricetus Worm, the Worm that had killed and mimicked his brother, Kagami could not bring himself to kill the Worm as he thought it would be killing the last remnants of his brother. Kabuto would also not kill the Worm until Kagami made the choice to allow him to kill the Worm. Kagami was later chosen by the TheBee Zecter to become Kamen Rider TheBee after it rejected the previous user, Sou Yaguruma, and reacted to his desperation to protect the wounded Shadow members. Arata, however, gave up his role as TheBee after he was torn between the orders of ZECT to eliminate Kabuto and his budding friendship towards Tendou.

He later realized that Souji did not want a friendship with him—after accepting this fact and renewing his pledge to destroy all Worms, Tendou let him back into his life. He was later framed by Shun Kageyama as being a traitor to ZECT, but this was simply to lure the real traitor out. He would have died if Tendou had not saved him. This incident ignites Kagami's will to destroy Worms on his own.

Although he is given a chance to test the Gatack Zecter, he was attacked by it when it rejected him. When Kagami goes to rescue the young boy Makoto, whom he met in the warehouse, Makoto's true form is revealed to be Tarantes Worm, who kills Arata and leaves quickly. After the Worm leaves, a mystery man appears and equips Kagami's lifeless body with a Zecter belt. Kagami then revives due to the capability of the ZECT belt's energy field. Later, Kagami calls upon the Gatack Zecter and goes on to fight the Tarantes Worm only to be saved by him in the end by shielding him from the explosion detonated by the Shadow Troopers. This convinces him that Worms have a humane side to them; but is mocked when Kabuto tells him he's "naive as usual." Gatack tells Kabuto that he is who he is and nothing can change that. His design looks similar to Kabuto's except he has mandible horns and is colored blue with red eyes. The voice of Gatack Zecter differs from the other Zecters. He decides to work together with Misaki and Tadokoro to find out the truth of the Masked Rider Project after he confronted Mishima.

During a battle, Kagami discovered the true identity of Tsurugi Kamishiro (Kamen Rider Sasword). After seeing Tsurugi's devotion to avenge his sister, Arata decided to protect Tsurugi. This eventually caused a fight between Gatack and Kabuto to prevent Kabuto from killing Tsurugi. After this, Arata and Tendou witnessed the transformation of Hiyori to a Worm. Despite her being a Worm, Arata works together with Tendou to protect her. But their results end in failure as Hiyori disappears with the man in the iron mask. This incident leads Souji into joining ZECT in order to destroy it from within and also starts collecting Zecters. Arata does not believe in Tendou's method of collecting all the Zecters so he can save Hiyori. This eventually sparks a furious fight between Gatack and Kabuto, which Gatack ends up losing. Tendou wants Kagami to give up the Gatack Zecter but Kagami refuses, stating that Riders are meant to protect humans. Arata is seemingly destroyed by Cammarus Worm in episode 34, but he is saved when Hyper Kabuto uses the Hyper Zecter, although unsure of its function, to reverse the flow of time and save his life. Even after this Souji still told Arata that they will fight one day to finish things.

Kagami is told by the ZECT HQ to protect Daigo Tachikawa at first, but Arata soon discovers he is a Worm, but realizes then he realizes again that Daigo is not a Worm that destroys humans. Arata later finds Daigo again, this time taking him to Tsurugi's house to heal him. However, after the short confrontation, Daigo realizes Tsurugi is a Worm and uses the Sasword Zecter to escape from him. Arata was referred to by Tachikawa as "Arata Kagami, the one chosen by the god of battle". This was also shown in the report found at Area X. During the battle with Cochlea Worm, Kabuto’s Red Shoes System activates, which leaves Gatack alone to try and stop him. Ultimately succeeding, they are attacked by the Hopper Riders shortly after and are defeated horribly. In the end however, Arata and Souji make a promise with each other, if Souji goes berserk again and tries to kill Hiyori, Kagami will kill him, vice versa. Souji also no longer wants to own the Gatack Zecter, for no one would be able to stop him if Arata were to ever disappear.

Arata's suspicions about ZECT begin to grow during episode 41 when they unknowingly escort a group of Natives. When they are attacked by a group of Salis Worms, the Natives attempt to escape, referring to Gatack as "The Top's son". Confused, he is the first one to meet Reiji Nogi, the executive class Worm that was able to defeat him in one attack. Arata then goes to his father, and he tells him the origin of ZECT. Arata discovers that the Natives came to Earth 35 years ago and made an agreement to help create the Masked Rider System. In turn, ZECT would help protect the Natives against the Worms that would arrive later. His father tells him that his soul now belongs to the Natives, and Arata needs to be the one to carry it on. After hearing this, Arata begins to fear that his sole existence is to be the catalyst for defeating Worms. Arata's faith is further shattered when he discovers Tadakoro is a Native, thanks to the accidental exposure of AMB (Anti Mimic Bomb) gas. Shocked and dismayed, Arata continues to wonder about why Tadokoro hid this secret, and so he is unable to fight.

In turn, he is defeated by both some Salis Worms and Nogi in a matter of minutes. Arata is eventually led off by Misaki, but he is still angry at Tadakoro for hiding the fact that he is a Native. During episode 42, Arata is chosen as the negotiator to rescue the Natives. Nogi has demanded that ZECT give up their last AMB and they will release the Natives, along with Tadakoro. Arata, still angry at ZECT refuses and even gives up his Gatack Buckle. However, after Souji talks to him, he realizes that his father wanted him to save the Natives, but at the time keeping the AMB. Realizing that he needs to catch his father's feelings, Arata goes and meets Mishima, taking the AMB from him . Through trick and trap, they are able to rescue the Natives and protect the AMB, although Arata is once again defeated by Nogi. Souji arrives on the scene and displays his new power as he uses the Perfect Zecter Gun Mode to defeat Cassis Worm Dimidius.

After patching things up with Tadokoro, Arata once again has a brighter outlook on life. While playing again at the baseball field, Arata meets his father again, who shows that he does indeed love Arata and plays catch with him. In turn, Arata is finally able to accept his father's feelings. Soon after, Arata meets Cassis Worm Gladius in battle, and his Rider Kick attack goes horribly wrong, with the kick being returned against Arata. It is later discovered that Gladius and his Worm army are planning to assault Area Z, the place where the original Masked Rider System was created.

After leaving the Hospital, Arata discovers that Souji is planning to lose to Dark Kabuto in order to find Hiyori's whereabouts, and immediately finds Tendou, shouting the sense back into him. Despite this, Souji states that he cannot fight for Hiyori anymore, as she is happier with the fake. Arata however, believes that Hiyori is trying to protect Souji, and tells him that he needs to go after her. After Souji leaves for Hiyori's world, Arata goes on to fight Cassis Worm. He meets Shun who has once again become TheBee, but their attacks fail, and Nogi defeats them once more. Arata is able to return to the battle before Tadokoro detonated Area Z. Gatack, Kick Hopper, and Kabuto then execute a three-way Rider Kick, effectively neutralizing Cassis Worm who was then destroyed by Hyper Kabuto.

Gatack is called upon to fight the Worms that are constantly appearing, but he is sidetracked after discovering that Misaki has agreed to Tsurugi's request for a date. Unwilling to tell her that Tsurugi is a Worm, he follows them on their date, only to discover that Tsurugi does indeed lose control, forcing Arata to save Misaki.

Despite this, both Tsurugi and Misaki end up being completely infuriated at Arata. Misaki is astonished that Arata knew all along Tsurugi was a Worm, but never told her. Tsurugi is mad at Arata for similar reasons, that even though Arata knew all this, he never told him. Arata finally tells Souji of Tsurugi's true identity later, but still believes that he isn't entirely evil. Souji on the other hand, decides to defeat him, as with all other Worms. After rushing off to meet Clipeus once again, Scorpio Worm rises from the sea and assaults Arata. Arata, unwilling to fight his friend, gets defeated. Meeting Tsurugi again, Arata tries to convince him to live as a human again, handing him Misaki's present. However, Tsurugi punches Arata out instead, and takes the Gatack Zecter. Kidnapping Arata, Tsurugi attempts to destroy all the Zecters, but fails as Arata and Souji are able to regain their Zecters. While Souji goes to fight Scorpio Worm, Arata takes on one of the Clipeuses, effectively defeating him with a Rider Kick.

Arata's father Riku has finally announced to the world, saying that the Worm threat is finally over. Arata is given the task of delivering the necklaces that can warn humans when a Worm is near. However, he meets conflict in Souji when Souji states that there is something desperately wrong with the device. After multiple conflicts, Arata is finally able to confront Souji, but Souji escapes, and only leaves an injured Renge behind. This leaves Arata, Todokoro, and Misaki even more furious at Souji for his unexplainable actions. Later on, Arata encounters Souji once more and demands to know his reasons for destroying the necklaces. Souji states that they are turning humans into Natives; not believing this, Arata and Souji do battle. With the help of the ZECTroopers, Kabuto is defeated. After defeating Kabuto, Arata receives a call from Misaki, telling him that Mishima has taken over ZECT. Arata then goes to rescue his father, who tells him that no matter what, he must believe Kabuto and fight alongside him.

During the final stage, Arata finally realizes that the necklaces, along with Mishima's broadcast signals, are changing humans into Natives. After knowing Mishima's evil plot, Misaki and Tadokoro aided him. Arata confronted Mishima and Negishi, only to be defeated by Mishima and is almost killed, until Souji arrives on the scene. Arata realizes that they are the only ones who can save the world now, and must do it no matter what. Together with Hyper Kabuto, they are able to destroy Mishima, thus ensuring the safety of the world. Within his last moments, Mishima collides with the meteorite, setting off an explosion and ruining their entire operation.

After realizing the battle is over, he removes the Gatack Zecter, and letting it go, watches it fly away with the Kabuto Zecter to an unknown destination. Arata then falls to the ground with exhaustion, and as he is relaxing smiles, realizing the battle is finally over. After hearing Souji`s words and finishing it for him, Tadokoro, Misaki, and Renge arrive. Misaki gives a hug to Arata. Renge does the same to Souhi, giving both great surprise. Tadokoro stands to the side and smiles in victory.

During the epilogue, it is shown that Arata now lives a normal life as a police man, with his father still watching over him. As he is crossing children across the street, a young girl asks him, "Where did the man who walks Heaven's Path go?" Arata smiles and replies that Souji is currently out buying tofu. Arata then looks to Souji's house which he and the girl are standing in front of them at the sky in wonder.

Kamen Rider Decade

Rider War


Kamen Rider Gatack appears with other kamen Riders commanded by Wataru Kurenai ,but all are murdered by Decade in the episode 1 of Kamen Rider Decade in the dream of Natsumi Hikari and then conclude the dream with Decade as only Rider in the Rider War. Rider War

The Destroyer of Worlds


All the Riders killed by Decade.

In the special version of episode 31, Kamen Rider Gatack is seen as one of the many Kamen Riders who fought in the Rider War against Decade and were all destroyed. They were presumably restored after the destruction (and subsequent revival) of Decade at the end of the Rider War and the worlds were restored.The Destroyer of Worlds

OOO, Den-O, All Riders: Let's Go Kamen Riders

Kamen Rider Gatack in Legend War

Kamen Rider Gatack was part of a group of reinforcement riders led by Akira Date/Kamen Rider Birth to aid the primary riders in defeating the Rock Great Leader. All the Kamen Riders got on their bikes and performed the All Rider Break attack which destroyed the Great Leader. OOO, Den-O, All Riders: Let's Go Kamen Riders

Kamen Rider × Super Sentai: Super Hero TaisenIcon-crosswiki

Gokai Red vs Black,G3,Knight,Zolda,Hibiki & Gatack

Arata (as Gatack) as seen in Super Hero Taisen

He was only seen being defeated by Gokai Red (with Kamen Riders Knight, Black, G3, Hibiki and Zolda). It's unknown if he reappeared or not during the final battle.

Chou Super Hero Taisen


Gatack fights as part of the Kamen Riders' Blue Warrior Team. Kamen Rider × Super Sentai: Chou Super Hero Taisen

Kamen Rider Zi-O

2006: Next Level Kabuto

Zi-O 37

Kamen Rider Gatack and Zi-O team up

In 2019, Arata is still working as a member of ZECT. He's on the mission to defeat a Worm who has copied the appearance of Shun Kageyama. He encounters Sougo Tokiwa in battle with a swarm of Worms and assists him as Kamen Rider Gatack. Then, Shun appears and they fight in Clock Up mode. After Shun is knocked out by Zi-O II, Another Kabuto, who is also revealed to be Sou Yaguruma, intervenes and the two escapes the scene. Arata explains about ZECT and his mission to Sougo and Woz, then leaves in confusion because the supposedly destroyed Shibuya district is thriving. Some time later, Arata is lured out by Shun for Yaguruma. He battles PunchHopper as Woz GingaFinaly battles Another Kabuto. He is subsequently captured by the mimicked Kageyama.

2019: The Chosen Kabuto

Somewhere, Kagami is being held hostage. The mimicked Kageyama only agrees to release him if the Riders give him the Ginga and Fourze Ridewatches, as he wants the meteorite carrying his Worm comrades to crash into Earth without fail. However, Sougo and Woz manage to free Kagami and prepare to fight. Kagami transforms into Gatack and charges at Kageyama, only to be stopped by Yaguruma as Another Kabuto. Being outnumbered 2 to 1, Gatack is soundly defeated by Another Kabuto and PunchHopper. PunchHopper would go on to take the Fourze and Ginga Ridewatches as he flees with Another Kabuto.

Back at Sougo's place, Kagami blames himself for the loss of the two Ridewatches, but Sougo says it's not anyone's fault. Kagami later admits to Sougo that he has never been the Kabuto Zecter's chosen one, and that he has never been able to defeat Kabuto. Sougo assures him that he is a strong warrior, and that if he becomes a King, he would like to have Kagami to fight alongside him and protect everyone. Kagami is amused, saying that even Tendou does not mention something like that.

On the rooftop of a building, Geiz and Woz are fighting Another Kabuto and PunchHopper. Four combatants use their respective finishing attacks and force one another out of their transformations. Kagami, Sougo and Tsukuyomi (who has just retrieved the stolen Ridewatches), arrive at the scene to help. As Sougo and Woz go into space to deal with the meteorite, Geiz and Kagami stay to fight PunchHopper and KickHopper.

KickHopper is defeated by Gatack in a clash of Rider Kicks. However, when he changes into Another Kabuto, he swiftly turn the table and knocks Gatack out of his transformation by his own Rider Kick. Kagami stands up, refusing to give in, declaring himself as the "deity of war". Suddenly, the Kabuto Zecter appears from the sky and Kagami is able to catch it. Seeing that the Zecter has finally accepted him as its user, he transforms into Kamen Rider Kabuto to fight Another Kabuto. Both fighters turn on ClockUp, but Kabuto quickly gains the upper hand. As Geiz Revive Shippuu has just finished off PunchHopper, Kabuto defeats Another Kabuto with a Rider Kick, destroying the Kabuto Anotherwatch as a result.

After the battle, the Kabuto Zecter in Kagami's hand turns into the Kabuto Ridewatch. He gives it to Sougo, saying that Sougo is going to need it in order to become a King.

35th Masked Rider Anniversary File

Kagami is one of a group of five characters from Kabuto who appear hosting the 35th Masked Rider Anniversary File, a collection of five featurettes shown during episodes 23 through 27 of Kabuto, this segment acted as a look back to the Kamen Rider franchise and an early advertisement for the God Speed Love movie.

Video Game appearances

Kamen Rider Kabuto video game

Kagami appears as Kamen Rider Gatack and Kamen Rider TheBee, sharing his Rider power with Yaguruma and Kageyama. His Hyper form also available but his only finisher is the Hyper Kick. Kamen Rider Kabuto (video game)

All Kamen Rider: Rider Generation 2

Kamen Rider Gatack appears in All Kamen Rider: Rider Generation 2 as an unlockable character.

Kamen Rider: Battride War

Gatack (Battride War)

Gatack as he appears in Battride Wars

Kamen Rider Gatack appears as a Second Rider in the video game Kamen Rider: Battride War.

Kamen Rider: Battride War II

Kamen Rider Gatack reappears in Kamen Rider: Battride War II.

Kamen Rider: Battride War Genesis


Kamen Rider Gatack in Battride War Genesis.

Kamen Rider Gatack reappeared in Kamen Rider: Battride War Genesis.


Arata is quite rash and hotheaded, as shown when he takes the Kabuto bike to fight against Worms only for it to be taken away by Tendou and nearly gets himself killed for trying to use the Gatack Zecter. He easily gets annoyed, mostly because of Tendou's personality or when ZECT HQ gives absurd orders for him and his team. In addition, he is also quite naive, as he easily believes in the fact the mimicked Ryo (his younger brother who goes missing two years before but suddenly returns) and Makoto (a boy who is trapped in an abandoned factory full of Worms) are not Worms but real people. As a result, he nearly gets himself killed by Worms on more than one occassion. However, in Makoto's case, his belief may not be without merit, as the Worm actually does shield him and protect him from an explosion.

Aside from that, Arata is essentially a good natured person at heart, always willing to try his best to save people from the terror caused by Worms. He is amiable and supportive to all his friends, especially Tendou and Hiyori, and will never hesistate to help them once the need arises. In fact, the reason why he wants to become a Kamen Rider is to defeat all Worms that threaten humanity, and to avenge his brother Ryo. When he does become a Kamen Rider, he takes his duty very seriously, proving himself to be a valuable asset and ally to the protagonists.

Another trait of Arata's is his determination. During the time period when he's rejected by the Kabuto Zecter, he never backs down on his duty to fight and kill the Worms. Even though he is outperformed (for a while) by the other characters, he is still more than willing to take up arms on his own to fight and protect humanity.

Fighting Style

Despite being only a field agent, he frequently takes on Worms while being armed only with his standard-issue collapsible pistol. It is interesting to note that he is the first ZECT Agent to kill a Worm on his own by impaling it with the retractable bayonet of a Machine Bladegun on one occasion. When fighting as a Kamen Rider, Kagami's fighting style largely involves brawler-type moves, frequently tackling his enemies and opting for rapid punches and kicks. As Gatack, his fighting prowess becomes more and more refined as the series progress, becoming a formidable foe to any Worm that he comes across. He makes full use of his Gatack Vulcan and Double Calibur in battle, shooting and slicing Worms in quick succession. This, combined with ClockUp, allows him to defeat swarms low-class Worms with little to no effort at all.


Kagami was the second user chosen by TheBee Zecter to become Kamen Rider TheBee. Later, he was chosen by Gatack Zecter and became Kamen Rider Gatack. In 2019, he was chosen by the Kabuto Zecter and became Kamen Rider Kabuto.

Masked Form

Masked Form

―Transformation announcement[src]
  • Height: 192 cm[1]
  • Weight: 127 kg[1]

Ability Perimeters

  • Punching Power: 8 t.[1]
  • Kicking Power: 9 t.[1]
  • Maximum Jump Height: 21 m.[1]
  • Maximum Running Speed: 100 m. per 8.6 sec.[1]

Masked Form (マスクドフォーム Masukudo Fōmu) is TheBee's strong, heavily armored, but less offensive form resembling a beehive. This is the default form until the rider rotates TheBee Zecter around the wrist to initiate the Cast Off command.

Appearances: Kabuto Episode 9-10

Rider Form

Rider Form

"Cast Off: Change Wasp!"
―Transformation announcement[src]
  • Rider Height: 192 cm[1]
  • Rider Weight: 92 kg[1]

Ability Perimeters

  • Punching Power: 3 t.[1]
  • Kicking Power: 6 t.[1]
    • Finisher Power: 17 t.[1]
  • Maximum Jump Height: 39 m.[1]
  • Maximum Running Speed: 100 m. per 5.6 sec.[1]

Rider Form (ライダーフォーム Raidā Fōmu) is TheBee's sleeker, faster, and more offensive form which morely resembles the wasp motif. In this form TheBee can initiate the Clock Up command to travel at near light speeds match the speed of Worms. By pressing a button on TheBee Zecter, the Rider Sting (ライダースティング Raidā Sutingu) tachyon-powered punch is activated, allowing the user to pierce through a Worm with the stinger on the TheBee Zecter.

Appearances: Kabuto Episode 10

Masked Form

Masked Form

―Transformation announcement[src]
  • Height: 190 cm[2]
  • Weight: 134 kg[2]

Ability Perimeters

  • Punching Power: 8 t.[2]
  • Kicking Power: 9 t.[2]
  • Maximum Jump Height: 19 m.[2]
  • Maximum Running Speed: 100 m. per 8.9 sec.[2]

Masked Form (マスクドフォーム Masukudo Fōmu) is a heavily armored form resembling a pupa. This is Gatack's default form, armed with the Gatack Vulcan (ガタックバルカン Gatakku Barukan) to mow down any Worm unfortunate to stray in Gatack's line of sight in a hail of bullets specialized to kill Worms, until he opens up the horns on the Gatack Zecter, like a switch, to initiate the Cast Off (キャストオフ Kyasuto Ofu) command.

Appearances: Kabuto Episode 22-49, God Speed Love, Zi-O Episode 37-38

Rider Form

Rider Form

"Cast Off: Change Stag Beetle!"
―Transformation announcement[src]
  • Rider Height: 194 cm[2]
  • Rider Weight: 97 kg[2]

Ability Perimeters

  • Punching Power: 3 t.[2]
  • Kicking Power: 7 t.[2]
    • Finisher Power: 19 t.[2]
  • Maximum Jump Height: 36 m.[2]
  • Maximum Running Speed: 100 m. per 5.8 sec.[2]

Rider Form (ライダーフォーム Raidā Fōmu) is the sleeker, faster, and more offensive form that closely resembles the stag beetle motif. In this form, Gatack has access to the Clock Up (クロックアップ Kurokku Appu) command which allows Gatack to travel at near-light speeds to match the speeds of the Worms. By pressing a button three times on the belt in succession, Gatack can perform his tachyon-powered Rider Kick (ライダーキック Raidā Kikku), a jumping roundhouse kick. Gatack also has a Rider Cutting (ライダーカッティング Raidā Kattingu) attack, where he takes the Gatack Double Calibur (ガタックダブルカリバー Gatakku Daburu Karibā) and uses them to perform a scissor-like cutting attack.

Appearances: Kabuto Episode 22-49, God Speed Love, OOO, Den-O, All Riders: Let's Go Kamen Riders, Kamen Rider x Super Sentai: Super Hero TaisenIcon-crosswiki, Kamen Rider x Super Sentai: Chou Super Hero TaisenIcon-crosswiki, Zi-O Episode 37-38

Hyper Form


Hyper Form


Hyper Form Clock Up Mode

"Hyper Cast Off: Change Hyper Stag Beetle!"
―Transformation announcement[src]
  • Rider Height: 197 cm
  • Rider Weight: 104 kg

Ability Perimeters

  • Punching Power: 10 t.
  • Kicking Power: 15 t.
    • Finisher Power: 30 t.
  • Maximum Jump Height: 49 m.
  • Maximum Running Speed: 100 m. per 4.2 sec.

Gatack's Hyper Form (ハイパーフォーム Haipā Fōmu) was only seen in the Kamen Rider Kabuto Hyper Battle DVD Birth of Hyper Gatack. This form is capable of performing Hyper Clock Up to move at a greater speed than the regular Clock Up that even races through time and also allows Hyper Gatack to perform the Hyper Kick attack when his Rider Power is brought to the maximum, same as Kabuto's Hyper Form.

The only differences between his Rider and Hyper Forms in looks, is a bigger chestplate and larger Stag Beetle Horns on his helmet. When he activates Hyper Clock Up, his chest plate color turns from red to yellow.

Hyper Gatack also appears in the Kamen Rider Kabuto PS2 video game.

Appearances: Birth! Gatack Hyper Form!!

Masked Form

Masked Form

―Transformation announcement[src]
  • Height: 190 cm[3]
  • Weight: 132 kg[3]
  • Punching Power: 8 t.[3]
  • Kicking Power: 10 t.[3]
  • Maximum Jump Height: 20 m.[3]
  • Maximum Running Speed: 100 m. per 8.9 sec.[3]

Kabuto's Masked Form (マスクドフォーム Masukudo Fōmu) is a heavily armored form resembling a pupa. Due to the heavy armor, Masked Form offers strong defensive but low offensive capabilities. This is Kabuto's default form, until he flips the "horn" on the Kabuto Zecter (カブトゼクター Kabuto Zekutā), like a switch, to initiate the Cast Off (キャストオフ Kyasuto Ofu) command. This primes the armor to "Cast Off," which when fully activated, sends the armor flying off his body, destroying all lower Worms that get hit with the ejected armor parts and revealing the sleeker Rider Form. It is shown to be possible for Masked Form to be bypassed altogether, as seen in the Hyper Battle Video and by the alternate version of Kamen Rider Dark Kabuto in Kamen Rider Decade, by flipping the horn immediately after placing the Kabuto Zecter on the belt before the armor materializes. When Kabuto switches the horn on the Kabuto Zecter back to its original position, it will initiate Put On (プットオン Putto On) sequence, where all of the extra armor reattaches to him, restoring Masked Form either partially or completely.

The Armor of Masked Form consists of the following parts:

  • Kabuto Receiver (カブトレシーバー Kabuto Reshībā) is the V-shaped horn on the forehead, usually has more than four times the hearing ability of a person, listens to sounds in the range of 16 Hz to 120 thousand Hz, and can even hear a needle falling 5 km ahead.
  • Manipulator Arm (マニピュレーターアーム Manipyurētā Āmu) is the silver armor supported and reinforced by HP Pod (HPポッド HP Poddo), it is possible to continue to lift with heavy load even with heavy objects of 25 tons for a long time.
  • Lung Slit (ラングスリット Rangu Suritto) is the black shoulder tip that take in air. Gas is separated, converted into high-compression oxygen, and the oxygen concentration in the body is made up, and make Oxygen Value (オキシジェンバルプ Okishijen Barubu) spreads throughout the body. Only activated by qualified person can make him to be able to use the Masked Rider System freely.
  • Kabuto Exclusive Zect Mark (カブト専用ゼクトマーク Kabuto Sen'yō Zekuto Māku)
  • Enhanced Chest (強化チェスト Kyōka Chesuto) hidden inside the Masked Armor, stores high compressed oxygen which can be operated freely for more than 10 hours even above 5000 m above sea level. In Masked Form, Kabuto Horn is stored and isolated in chest.
  • Masked Armor (マスクドアーマー Masukudo Āmā) is molecularly coupled by electric force called van der Waals force. Also, by Cast Off, Masked Armor can blow off at the initial speed of 2000 m/s and can give damage to enemies nearby.

Appearances: Zi-O Episode 38

Rider Form

Rider Form

"Cast Off: Change Beetle!"
―Transformation announcement[src]
  • Height: 195 cm[3]
  • Weight: 95 kg[3]
  • Punching Power: 3 t.[3]
  • Kicking Power: 7 t.[3]
    • Rider Kick Finisher: 19 t.[3]
  • Maximum Jump Height: 37 m.[3]
  • Maximum Running Speed: 100 m. per 5.8 sec.[3]

Kabuto's Rider Form (ライダーフォーム Raidā Fōmu) is the sleeker and more offensive-based form. This form resembles more of a Japanese rhinoceros beetle, which Kabuto is named and themed after. In this form, Kabuto has access to the Clock Up (クロックアップ Kurokku Appu) command, enabling him to move freely through the flow of time to match the Worms. By pressing the three buttons on the belt in succession, Kabuto can perform his tachyon-powered Rider Kick (ライダーキック Raidā Kikku). Kabuto Rider Form has three known variations of Rider Kick: a normal 180 degree roundhouse kick, a counter kick (360 degree roundhouse kick, which is used to surprise opponents who attempt to attack him from behind), and a flying side kick.

Rider Form consists of the following parts:

  • Kabuto Horn (カブトホーン Kabuto Hōn)
  • O Signal (Oシグナル O Shigunaru)
  • Bonchermette (ボーンシェルメット Bōnsherumetto)
  • Compound Eye (コンパウンドアイ Konpaundo Ai) has a field of view to instantaneously identify targets 2 km away covering the wide angle of 130 degrees in all directions. Moreover, enemies can be identified by fluoroscopy with X-rays, neutron rays, and infrared rays even in hidden objects and darkness.
  • Kabuto Breast (カブトブレスト Kabuto Buresuto)
  • Sign Suit (サインスーツ Sain Sūtsu)
  • Rider Armor (ライダーアーマー Raidā Āmā)
  • Rider Barm (ライダーバーム Raidā Bāmu)
  • Full Throttle (フルスロットル Furu Surottoru)
  • Rider Stomper (ライダーストンパー Raidā Sutonpā)

Appearances: Zi-O Episode 38





Legend Rider Devices

"(Digital beeping) Gatack!"
―Activation announcement[src]

"Kabuto's partner, the blue stag beetle Rider is...Gatack! (カブトの相棒、青いクワガタライダーは…ガタックだ! Kabuto no aibō, aoi kuwagata Raidā wa...Gatakku da!)"
―Secondary activation announcement[src]

"Armor Time! (electronic beat mixed with Gatack Zecter post-Rider Form noises) Stag Beetle! Gatack!"
―Rider Armor transformation announcement[src]

"Finish Time! Clock Time (Break/Burst)!"
―Rider Armor finisher announcement[src]



  • Allies:
    • Souji Tendou: At first, he considers Souji a weird person and gets annoyed by his personality but later wants to befriend him. Although their relationship has a rather rocky start in the beginning due to their differences, they eventually become great friends, with Tendou even noting that their bond is unbreakable during their fight with Cassis Worm. The two share a mutual trust and dependence on each other. Tendou helps Arata when he's in doubt, and Arata convinces him to fight Dark Kabuto instead of giving up. On a side note, Tendou believes that Arata should be the one to defeat him if the Red Shoes System makes him go out of control. 
    • Yuzuki Misaki: Yuzuki is the most trusted ally on his team. Like Tendou, she is also usually shown giving Arata advice when he is in a dilemma. 
    • Shuichi Tadokoro: Arata's superior who cares greatly about his subordinates. Arata looks up to him, but he loses all of his respect when it is revealed Shuichi is a Native. However, they are able to set aside this difference eventually and become good partners again
    • Hiyori Kusakabe: Arata's coworker at the Bistro La Salle. The two share a close relationship. In the movie's timeline, it is revealed that he is in love with her.
    • Jyuka Tendou: He befriends Jyuka despite Souji's reluctance of having Jyuka as his friend. He also cares about Jyuka like his own sister.
    • Yumiko Takemiya: His boss at the part time job. There are times when she helps Arata get closer to Hiyori.
    • Daisuke Kazama: Arata thinks of him as weird as Souji. They do not share a close relationship, only appearing together when fighting Worms most of the time.
    • Tsurugi Kamishiro: Tsurugi considers Kagami his great friend, and wants the best of things to happen to him. Kagami, however, cannot muster enough courage to reveal the truth that Tsurugi is actually Scorpio Worm all along to the millionaire, because he is afraid that it may hurt Tsurugi. 
    • Jiiya: Jiiya trusts Arata enough to tell him about Tsurugi's biggest secret. The two are usually seen discussing what to do with Tsurugi.
    • Renge Takatori: At first, Arata and Renge have a very bad relationship. Arata dislikes her childlish attitude while Renge dislikes Arata for being a clumsy senior. Later on, Renge begins to respect Arata more, particularly during the School ghost incident, when Arata tries to cheer up students when they are trapped in a bus shrouded with mist, which has been caused by a Worm's attack.
  • Family:
    • Riku Kagami: Arata at first shows animosity towards his own father because of his nonchalance at the death of Ryo Kagami, his second son. After learning what his father has been through all the time, Arata finally understands the responsibility and love of Riku, and they become close once more. They are even seen playing catch with each other as adults on one occasion.
    • Ryo Kagami: Arata cares about and loves his younger brother greatly. This even makes him reluctant at letting the Worm that mimicked his brother be destroyed.
  • Enemies:
    • Masato Mishima: Initially, the two dislike each other beacuse of their difference in personality. In the final stages of the series, when Mishima becomes the last obstacle, Arata is determined to finish him off for good. Mishima admits in the final episode that he has always hated men who are "straight as an arrow" like Arata.

Behind the scenes


Arata Kagami is portrayed by Yuuki Sato (佐藤 祐基 Satō Yūki). As Kamen Riders Gatack and TheBee, his suit actor was Makoto Ito (伊藤 慎 Itō Makoto).


  • The motif of Gatack is that of a "Kuwagatamushi" or stag beetle as opposed to Kabuto whose motif is that of a rhinoceros beetle.
  • He is one of two Riders whose Masked Form provides additional offensive capabilities, the Gatack Vulcan, in addition to increased defense, the other being Sasword's Blood Vessels.
  • The name is a portmanteau of "kuwagata" and "attack" forming Gatack​​, which ironically would foreshadow who he would be after abandoning TheBee Zecter.
  • Gatack's Hyper Form is exclusive to the series' Hyper Battle DVD. Unlike Kabuto, whose armor experiences a major remodeling upon transforming, the changes from Gatack to Hyper Gatack are minimal, only changing his helmet and adding a Tachyon breastplate, which does not open up during Hyper Clock Up. Gatack gains no new weapons or capabilities as Hyper Gatack beyond the use of Hyper Clock Up and a Hyper Kick, though he retains the use of the Gatack Calibur.
  • Gatack is considered the Secondary Rider of Kabuto despite being the fifth Rider seen in the show. This is probably due to his frequent appearances in the series especially with the main Rider, as well as his theme (Kuwagatamushi), which is often portrayed as the "counterpart" of Kabutomushi.
    • It is also noted that the opening of Kamen Rider Kabuto started to update after Gatack started his debut, the tradition that always be done to any Kamen Rider's opening video whenever the second rider started to appear late in the show.
  • Arata is the second Kamen Rider after Ryotaro Nogami to have defeated his Another Rider counterpart on his own.


See Also


  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 "TV Asahi's page for TheBee". 
  2. 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 "TV Asahi's page for Gatack". 
  3. 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 3.11 3.12 "TV Asahi's page for Kabuto". 
Icon-kabuto Kamen Rider Kabuto
Masked Rider System Users
Souji Tendou - Arata Kagami - Daisuke Kazama - Tsurugi Kamishiro - Sou Yaguruma - Shun Kageyama - Souji Kusakabe
Gear: The Zecters -Rider Belt - Rider Brace - ZECT Kunai Gun - Kabuto Kunai Gun - Drake Grip - ZECT Mizer - Perfect Zecter - Gatack Double Calibur - Sasword Yaiver - Kabuto Extender - Gatack Extender - Machine Zectron
Riku Kagami - Masato Mishima - Renge Takatori - Yuzuki Misaki - ZECTroopers
The Natives: Daigo Tachikawa - Shuichi Tadokoro - Negishi - Masato Mishima - Hiyori Kusakabe
Worms: Aracnea Worms (Aracnea Rubor - Aracnea Flavus - Aracnea Nigritia) - Lanpyris Worm - Bellcricetus Worm - Epilachna Worm - Pulex Worm - Verber Worms (Verber - Verber Rota) - Coleoptera Worms (Coleoptera Aeneus - Coleoptera Croceus - Coleoptera Argentum) - Musca Worm - Sectio Worms (Sectio - Sectio Acuere) - Formicaalubus Worms (Formicaalubus - Formicaalubus Oculus - Formicaalubus Maxilla) - Brachypelma Worms (Brachypelma Aurantium - Brachypelma Viridis) - Tarantes Worm Purpura - Geophilid Worms - Acarina Worms (Acarina - Acarina Amber) - Viella Worm - Sepultura Worm - Genomyas Worm - Culex Worm - Foliatus Worm - Cammarus Worm - Camponotus Worms (Camponotus Oculus - Camponotus Maxilla) - Cochlea Worm - Leptophyes Worm - Subst Worm
Executive Worms: Uca Worm - Cassis Worm
View • [Edit]
Sougo Tokiwa (future, Mirror World) - Geiz Myokoin - Woz (black, white)
Future Kamen Riders
2022: Rentaro Kagura - Isamichi Konjo
2040: Mondo Douan
2121: Rento Makina
Rider Time Ryuki Riders
Ishihashi - Tozuka - Kimura - Ishida - Abyss - Odin
Other Riders
G3 Team - Shun Kageyama (Worm)
Movie-exclusive Riders
Barlckxs - Kagen - Jogen
Ziku-Driver - Ridewatches - BeyonDriver - Mirai Driver (Shinobi, Hattari, Quiz, Kikai, Ginga) - Zikan Girade - Zikan Zax - Ride HeiSaber - Zikan Despear - Saikyo Girade - Zikan Jaclaw - Faizphone X - Taka Watchroid - Kodama Suika Arms - Ride Striker - Time Mazine - Kurogane Oogama - Unnamed Giant Wasp Mecha - Neo Decadriver - Neo Diendriver
Rider Armors - Ridewatch Holder - Oma Advent Calendar - Future Note - Time Break/Burst
9 5 DO: Geiz Myoukouin - Tsukuyomi - Junichiro Tokiwa
Futaros - Ataru Hisanaga - Shingo Hisanaga - Iroha Kagura - Master Gamano - Sara - Ms. Sailor - Oda Nobunaga - Clara Steinbelt
Resistance: Resistance Captain
Agito: Shouichi Tsugami - Takahiro Omuro
Ryuki: Shinji Kido - Dark Shinji - Ren Akiyama - Takeshi Asakura - Miyuki Tezuka - Jun Shibaura - Goro Yura - Kamen Rider Odin
555: Takumi Inui - Masato Kusaka
Blade: Kazuma Kenzaki - Hajime Aikawa
Hibiki: Tomizo Todayama - Kyosuke Kiriya
Kabuto: Arata Kagami - Sou Yaguruma
Den-O: Ryotaro Nogami - Yuto Sakurai
Kiva: Jiro
Decade: Tsukasa Kadoya - Daiki Kaito
OOO: Eiji Hino - Michal Minato
Fourze: Gentaro Kisaragi
Wizard: Haruto Soma - Kosuke Nitoh
Gaim: Kouta Kazuraba - Kaito Kumon
Drive: Go Shijima
Ghost: Takeru Tenkuji - Makoto Fukami
Ex-Aid: Emu Hojo - Hiiro Kagami - Kuroto Dan
Build: Sento Kiryu - Ryuga Banjo - Kazumi Sawatari - Gentoku Himuro
Chuta Ohsugi - Daita Kondou - Chikao Nezu - Hina Izumi - Shibuya Hachioji - Narita Kisarazu - Misora Isurugi - Master of Fumen - Owner - Momotaros - Urataros - Kintaros - Ryutaros - Daisuke Okubo - Amane Kurihara - Mana Kazaya - Riki - Ramon - Deneb - Krim Steinbelt
Swartz - Heure - Ora
Movie Exclusive
Barlckxs - Kagen - Jogen - Woz
Another Build - Another Ex-Aid - Another Fourze - Another Faiz - Another Wizard - Another OOO - Another Gaim - Another Den-O - Another Double - Another Kuuga - Another Ghost - Another Shinobi - Another Quiz - Another Ryuga - Another Kikai - Another Zi-O - Another Ryuki - Another Blade - Another Agito (troops) - Another Hibiki - Another Kiva - Another Kabuto - Another Drive - Another Decade
Other Villains
Kasshin - Humanoise - Yaminin - Dustards - Worms
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