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This article is about a/an rider in Kamen Rider Gaim.
"I think I can go higher. More powerful; more versatile; power worthy of a god."
―Ryoma voicing his ambition to Kouta and Kaito.[src]

Ryoma Sengoku (戦極 凌馬 Sengoku Ryōma), refered to as Professor Ryoma (プロフェッサー凌馬 Purofessā Ryōma), was the creator of the Sengoku Driver and the Genesis Driver. He worked under Takatora Kureshima, his closest friend to stop Helheim's invasion. However, after a conversation gone awry with Takatora, Ryoma secretly plans a coup against him. Ryoma Sengoku initially transformed as Kamen Rider Duke (仮面ライダーデューク Kamen Raidā Dyūku) using a Sengoku Driver. He later upgrades himself along with Takatora using the Genesis Driver and the Lemon Energy Lockseed in place of his regular Lemon Lockseed. Further upgrades were then given to Genesis Driver to allow him to combat the weaker Over Lords with relative ease as well with additional functionality.

Character History

Past

Ryoma Past GG2

Ryoma Sengoku as he originally appears in the Gaim Gaiden specials.

Like Touka Akatsuki, he spent his childhood in the now-defunct Zawame Child Care Facility, where children with potential are experimented on and brutally raised to work for Yggdrasill in their future. Under Amagi Kureshima, he created his first products, the fully successful Forbidden Ringo Lockseed (although it has a negative side-effect), and a negative life draining prototype Yomotsuheguri Lockseed. Ryoma, in his horror, had witnessed the destruction of Kugai Kudo due to the negative impact of Forbidden Ringo Lockseed in its testing, which it went horribly wrong. He was eventually able to become a researcher for the company later in his life.

He met Takatora Kureshima at some point where they decided to work together to develop the Sengoku Drivers. He also the one who recruited Sid and Yoko to his side.

During a development of the Sengoku Driver with Takatora, the first test failed until in the present, the prototype version has been completed. Prior to Takatora getting medical attention, Ryoma got a report from Yoko of the Inves' leader called an Over Lord, which is the image that appears to be Demushu existing in the ruins, without telling Takatora about the Inves' leader's existence due to Takatora's insistence of putting humanity first above themselves.

He was also involved in recording the fate of Yuya Sumii in Helheim and Kouta Kazuraba's first transformation as Gaim is unaware he was fighting his own friend.

Beat Riders Saga

Sometime after the events of Bravo defeating Gridon and Kurokage, Ryoma arranges a meeting about Oren's portfolio, a man with military training. Later, Ryoma talks to Takatora about the new model which he replies to Ryoma that he will test the belt for humanity's sake. After, being requested by Sid to have multiple Lockvehicles, Ryoma views this as an opportunity to have all 7 prototype Sengoku Drivers in the Helheim forest. However, seeing Takatora is not pleased to have street rats in the forest, Ryoma warns Takatora to not destroy his precious work. During the Inves breakout of this event as they run rampant to Zawame City, Ryoma aids Gaim through the use of the Yggdrasill's tower through the use of a cloaking mechanism and beam weaponry.

Sometime during this saga, Ryoma created the experimental Lockseed, the Yomotsuheguri Lockseed to see if he could tap more power from Helheim given the Sengoku Driver's limitations. The prototype was abandoned due to the fact that the Yomotsuheguri Lockseed drained the lifeforce of its user at the cost of power (which unknown to everyone, it rivaled the power of the Kiwami Lockseed, a seed of the Golden Fruit). Ryoma also noted that the first Lockseed he created was dubbed the Ringo Lockseed which gives a potent amount of power that allows users to manipulate Cracks at will. However, the Ringo Lockseed overwhelmed its user by spouting Helheim vines from the Ride Wear. Ryoma also worked on a successor prototype of the Suika Lockseed dubbed the "Watermelon Lockseed" because the Suika Lockseeds were hard to come by and had to recharge. This Lockseed was scrapped due to the fact that the output of the Watermelon Lockseed was inferior to the newly created Energy Lockseeds and that the Watermelon Lockseed drains the stamina of the user much more quickly.

Also sometime during this saga, Ryoma is aware about the existence of Kugai Kudo and the Black Bodhi. He finally meets Kudo before the hypnotized blank Zakuro Lockseed users are about to kill him by explosion before Takatora quickly arrives to save Ryoma. Ryoma later discovers the hidden location of Kudo's artificial Lockseed warehouse. As Ryoma and Takatora enter into the warehouse, they meet Kudo, who transforms into Armored Rider Saver. Takatora and Ryoma transform into Armored Riders by using their Sengoku drivers to fight Saver, until Takatora overpowers Kudo.

Yggdrasill Saga

RyomaLabClothes

Ryoma while working under Yggdrasill.

Few days later, Ryoma finally completes four Genesis Drivers along with four Energy Lockseeds. Ryoma goes back to Kudo's warehouse to confront him once again. Ryoma resolves that though Takatora will be his obstacle, he still acknowledges him and mocks Kudo that is just a third-rate cannot be considered a potential person to acquire Godhood before Ryoma transforms using his Genesis Driver to fight Kudo as Saver. Ryoma finally defeats Kudo by shooting his Sengoku Driver directly.

Ryoma later has Takatora test the Genesis Driver, impressed with its output and stating that they're one step closer to understanding the Helheim forest. Ryoma is seen once more, transforming with the Lemon Energy Lockseed, and watches Sigurd kill Ryoji Hase. In the aftermath of this event, he formally introduces himself to Kouta and Kaito, asking for their permission to continue using them in his quest for power. However, when the two escape, he finds himself puzzled when his equipment (the Lemon Energy Lockseed and the Genesis Core slot) is stolen. Though, initially confused on why someone would steal the incomplete core slot prototype, Ryoma uses the data fed back from Kouta's Sengoku Driver to improve the mass-production models. Realizing Mitsuzane's inner darkness, he covers his actions when he "betrays" Yggdrasill by aiding Kouta. When he views the readings of the data fed back from the fight between Jimber Lemon Gaim and Marika, Ryoma decides to test out his Genesis Driver on Kouta. While apologizing for his inability to restrain his power, he easily decimates Jimber Lemon Gaim and Baron without breaking a sweat. After canceling his transformation, he realizes that Yoko never used the Genesis Driver to it's maximum potential, wondering why she's holding back. After hearing about Kaito's speech about strength and power, he manipulates Kaito into searching for the Over Lords without giving him the necessary preparations to combat them, although Kaito was already aware what Ryoma's up to. During Kaito's search for Demushu, Ryoma apologizes about Kaito's family's downfall caused by Yggdrasill when they bought and destroyed Kaito's father's construction factory in the past, remarking that Yggdrasill knew Kaito's father's weaknesses, such as greed for money, which also leads him to become corrupted and alcoholic towards his family, thus both Kaito's parents ended up committing suicide, and leaving Kaito an orphan and losing the ability to trust someone whom he sees as weak.

When Yggdrasill is under attack by an unknown Armored Rider who can produce Helheim power one by one, Ryoma was informed by Takatora from Yoko, who managed to survive the attack and identify what the Armored Rider looked like and who attacks Yggdrasill members one by one, such as the Kurokage Troopers and even Sid. Ryoma gave a prototype version of Suika Lockseed, Watermelon Lockseed to Takatora, just in case Takatora loses his Genesis Driver equipment and needs to use his Sengoku Driver as a back up plan. Upon learning the Armored Rider has the ability to create Cracks at will, Ryoma became concerned and realized what Lockseed the Armored Rider used, although only Takatora thought Ryoma might have been thinking about something to do with the orphanage under the direction of Takatora's father, Amagi, in which Ryoma used to belong to, despite Takatora being unaware of Ryoma's origin.

After Takatora discovered that the identity of the Armored Rider who attacked Yggdrasill was actually Touka, he spared her and left her to atone, due to never treating her as a slave in the past. Ryoma revealed himself to Touka about his origin, along with a life draining prototype Yomotsuheguri Lockseed he created in the past, then kills her to take the Ringo Lockseed back, while Touka is weakened due to the Lockseed, without Takatora knowing.

Sometime during this time after taking the Ringo Lockseed from Touka, Ryoma Sengoku worked on the prototype of the Dragon Fruits Energy Lockseed and gave it to Alfred. Though the Lockseed was destroyed and consumed Alfred, creating a pseudo Over Lord, Ryoma sent Yoko to give Kaito the Ringo Lockseed to test the strength of the Ringo Lockseed and to destroy Alfred. Though Kaito destroys Alfred, the latter also destroys the Ringo Lockseed as well.

When a Crack appears on a bridge in the middle of the city, he asks Takatora if they should resort to use the Scalar System, however Takatora wants to minimize damage as possible, sending Ryoma down to the other side of the Crack in the Helheim Forest. With a squad of Kurokage Troopers, Marika, and Gaim, he explains to Kouta about Project Ark and how humanity will be culled down to one-seventh in order to kill off the potential 6 billion Inves that might come into fruition in the next ten years. In addition to this revelation, he also tells Kouta that the Sengoku Driver will help the remainder of humanity as it converts Helheim's fruits into Lockseeds and enables the wearer to absorb the nutrients safely without side effects. As the Crack closes, Kouta steals Yoko's Peach Energy Lockseed and rushes to HQ to destroy the Scalar System.

Helheim & Over Lord Saga

Ryoma apologizes to Mitsuzane for revealing classified information to Kouta. Though Kouta ignores Mitsuzane's pleas to stop, Ryoma is shocked and angered when Kouta utilizes the Kachidoki Lockseed, a Lockseed not created by him. Realizing that someone is helping him from the shadows, he tasks Mitsuzane to investigate Kouta to find out who is helping him. Takatora, along with the group are informed of creatures that were more than a threat to humanity than the Inves by Mitsuzane. Realizing that their chance for power is dwindling, Ryoma gives Sid another Cherry Energy Lockseed, hoping that Sid will kill Kouta this time.

"There must be some kind of forbidden fruit that will grant an ultimate power to those who obtained it."
―Ryoma's conversation with DJ Sagara about the theory on forbidden fruit.[src]

When Sagara appears in Ryoma's office. Ryoma reveals that mythology of a greater power is really the forbidden fruit of the Helheim and that Helheim has been here since the beginning of civilization. However, before he can have a longer conversation with Sagara, Sagara disappears telling them to find the Over Lords.

After analyzing the battle of the Over Lords with Baron, Ryoma kicks Kaito off the team as he can no longer fight the Over Lords with just his Sengoku Driver. However, Yoko requests for another chance for Kaito, giving him a Genesis Driver replacement. When figuring out how to find the Over Lords, Mitsuzane tells them that they can easily find the Over Lords if they adhere to his plans.

"You didn't understand me."
―Ryoma Sengoku's words before shooting down Takatora in Zangetsu Shin with the Sonic Arrow.[src]

Reminiscing about the Sengoku Driver's origin, he is reminded of the day when he starts a separate path rather than work together with Takatora. When Takatora enters the room, Ryoma explains to him that there is no possible way to get more than a billion Sengoku Drivers. As the alarm sounds off, the Over Lords make their first appearance to Yggdrasill, going on the offensive, destroying the campsite. Upon Takatora's realization of the Over Lords, Ryoma decides to dispose of Takatora while he still has the chance. Transforming into New Generation Rider Duke, Ryoma defeats Takatora and has Sid slash him down and throw him off a cliff. While in the headquarters and erasing all records of Takatora Kureshima, he finds Sid destroying the equipment around the tree, causing the Headquarter's Crack to disappear and close.

Sengoku Rocket

Duke evacuating from Zawame City.

Later, he informs Kouta, Kaito, and Mitsuzane about Sid's betrayal as he offers them a task to stop him from getting the Forbidden Fruit. With the Over Lord's attack in Zawame City, Duke activates the Master Intelligence System, cutting off all communication devices in the city except for his own platoon that are engaging Demushu. When Demushu escaped after being overpowered by Baron and Knuckle, the Helheim's plants started to invade Yggdrasill Tower. Duke abandoned Marika and Yggdrasill as he leaves by an Rocket, the rest to her.

Forbidden Fruit Saga

RyomaSengokuinHospital

Ryoma, discarding his Yggdrasill attire.

Ryoma Current

Ryoma transforms to fight Gaim.

Ryoma later shows up in a holographic conference with Yggdrasill's executives of their international branches from London, Hong Kong and Paris. When the Executives threaten to arrest him after an investigation of what the Japan branch did to cause this disaster, Ryoma activates a bug in the executives' phones which sends information to the world about Project Ark's culling of the population, causing everyone worldwide to panic.

Returning to Zawame, he witnessed the battle between the Kureshima brothers, until Kouta shows up only to find Takatora's destroyed Sengoku Driver and Melon Lockseed. He later follows Kouta to Team Gaim's garage and mocks him about what happened to Takatora. Angering Kouta, Ryoma battles him until he is ambushed by Knuckle and Baron, as he cancels his transformation and is taken under the alliance's custody. Ryoma then reveals to the group that they can enter the tower by a secret pathway that he had used to escape Zawame City, before leaving the garage.

After leaving Zawame, Ryoma and Kouta are the only members able to infiltrate into Yggdrasill Tower while Oren alongside Hideyasu fought an army of Inves, Kaito alongside Yoko and Zack distracting Ryoma's turned off Suika Arms soldiers and Tulip Hoppers security. They are halted by Shinmugurun and Kouta fights it. Ryoma soon helps Kouta with the reasoning that it will be too bad for losing a needed test subject and also to show Kouta how to use the Genesis power in the right way. He proved himself to be even more superior than Kouta by defeating Shinmugurun very easily without a scratch. But, he decided to not finish him off and see how Kouta will continue it. He takes the data of Gaim Kiwami Arms when Kouta accesses it. After the battle is over, he makes a thought that it will be interesting to collect more data about Kouta's new power.

Once they reach the site where the kidnapped citizens are, Redyue appears to fight them, however Duke retreats while Gaim continues to fight the Over Lord. Later, Duke manages to reboot the Master Intelligence System, seeing that the Inves didn't invade his property as he checks the records prior to the Inves invasion. Once he heard Rosyuo's name while analyzing the footage, he thinks that the Over Lord currently has the Forbidden Fruit in his possession.

"My brilliance... and research... are the only things of value. They are the truth of this world!"
―Ryoma persists the importance of his endeavor while at the mercy of Lord Baron.[src]

Once he found where Mai is, the possession of the Forbidden Fruit, and the Over Lords' leader to the remaining Armored Riders as Kouta and Kaito left, Ryoma also follows Kouta and Kaito in cloaking mode, in order to gather data of Rosyuo's power in Helheim. When the Forbidden Fruit from Rosyuo expires into nothingness and Mai went back to Earth, Ryoma also heard there's another Forbidden Fruit that Rosyuo's hidden and discovered that Rosyuo had planted the Forbidden Fruit in Mai. Ryoma returns to Zawame to take Mai to the hospital, along with Peko, Chucky, and Mitsuzane. Once they reach to the hospital, he examines her body as Ryoma believes that she might lose her humanity to become an Over Lord as this would shock Mitsuzane a lot. They then wonder about Rosyuo's purpose of handing the Forbidden Fruit to Mai as Sagara appears to them that she will become the first woman and reveals his true identity to them as Helheim himself. After Sagara explains his purpose to them and disappears, Ryoma informs Mitsuzane that he can remove the fruit from Mai, but believes that Kouta would interfere. Ryoma would give Mitsuzane the Yomotsuheguri Lockseed and warns him the consequences of using it before he leaves. What Ryoma doesn't tell Mitsuzane is that to remove the Golden Fruit from Mai he intends to kill and dissect her, which he does before disabling Mitsuzane's Genesis Driver and promptly strangling him. However, the Golden Fruit manifests into an apparition of Mai and leaves the area.

"How long do you think you'll last like that? Someday, you will destroy yourself. That is your... fate..."
―Ryoma's last words before falling off the hospital building, refusing to accept defeat by Lord Baron.[src]
Ryoma Falls

Ryoma falls to his death after being brutally beaten by Lord Baron.

Ryoma is then encountered by Kaito and Yoko and he disables their Genesis Drivers when they attempted to transform to avenge Mai. Despite Kaito trying his best as Baron Banana Arms, Duke still defeated him easily. After being mocked by Ryoma, Kaito gambled his own life by eating a Helheim Fruit. However, he instead changed into an Over Lord Inves, Lord Baron. Disgusted by Kaito's action, Ryoma tried to fight Lord Baron but was easily defeated and beaten. Ryoma then falls to his death over the edge of a building, but not before telling Kaito that he won't survive long.

Movie War Full Throttle

"It's been a long time, my friend."
―Mecha Ryoma's greeting to the Kureshima brothers[src]
MechaSengokuRyoma

The professor's return.

In the film Movie War Full Throttle, the mechanical lifeform Megahex uses Kouta's memories of the original Ryoma to create the cybernetic Mecha Ryoma Sengoku (メカ戦極凌馬 Meka Sengoku Ryōma) to prevent any from meddling in his affairs. As he is a convincing facsimile, seeing himself as Ryoma reborn, Mecha Ryoma considers himself as the realization of the original's desire of becoming a godly being. Using the Dragon Fruits Energy Lockseed, Mecha Ryoma drives off Mitsuzane Kureshima before he and Takatora face him the following day. As Mitsuzane leaves to save Mai, Takatora becomes Zangetsu and settles his affairs with Ryoma in a decisive battle that ends with Kamen Rider Zangetsu fatally wound Mecha Ryoma with the robot lasting long enough to speak some last words to his former friend. Mecha Ryoma's Genesis Driver would be later taken by Takatora to transform into Kamen Rider Zangetsu Shin once more.

Personality

Ryoma was one of Takatora's subordinates, and his and Sid's closest friend, a brilliant scientist in the Yggdrasill Corporation's research division who conducts experiments on the Lockseeds and is the inventor of the Sengoku Drivers and the Genesis Driver.

He is amoral in terms of using people as test subjects and expresses no interest in the Inves-based infections as his company's plan is his main focus. Despite his status as a scientist, he is dangerous in a fight, proven when he easily defeated Kouta in Jimber Lemon Arms (who managed to put up a good fight against the other New Generation Riders at the time) and Kaito in seconds with his sheer power. However, he rarely transforms and fights by himself. As shown, he would let the Kurokage Troopers and Marika fight the Inves in the Helheim forest and let the aforementioned riders capture Demushu while he himself just watched from a saferoom and eventually runs off leaving Marika and the Kurokage Troopers to die.

It is shown that he cares about his inventions, and want people to show respect and trust on them. When Kouta revealed his newly-gained Kachidoki Arms, Ryoma showed a bit of anger and jealousy that such a Lockseed was not his creation, displaying him as arrogant. Yet as a scientist, Kachidoki Arms is an unknown factor, with the above showing disdain for not knowing how Kouta got the Kachidoki Lockseed and immediately picks up the fact someone is helping Kouta, but doesn't know who. This is also shown when Kaito became Lord Baron, making Ryoma really angry because someone could survive the Helheim Fruits' side effects without his inventions. In Gaim Gaiden: Baron, when Alfred wanted to receive funding including 500 Sengoku Drivers, once again, he is a bit angry of Alfred's actions due to his thoughts of his research being mocked, so he decided to trick him into being his test subject for the Lockseed.

Ryoma can be manipulative at most of the times, such as when he manipulated Takatora and later Mitsuzane. Because of this, he prefers to act behind the stage and let the others fall to his manipulation for his own benefit. He is also unconfident about his own power, which is shown when he abandoned Yggdrasill and abused Duke's power, despite Duke already being the strongest Rider in general. Because of this, he tends to battle enemies with his abused power. He also created the Genesis Driver's kill switch in order to make sure that he won't be matched in power.

Appearances in other media

TV

Super Hero Time

Kamen Rider Duke alongside various other New Generation/Armored Riders poses with the ToQgersIcon-crosswiki in the Gaim/ToQgerIcon-crosswiki Super Hero Time opening. He also clashes with ToQ 3gouIcon-crosswiki at one point.

The Fateful Sengoku Movie Battle

Yoko first debut

At the end of the movie, Takatora watches Kouta, Kaito, Mitsuzane and Mai leaving the forest back to the real world as Ryoma and Yoko shows up to him and Ryoma gives him the Genesis Driver, as well as showing their Lockseeds.

Great Soccer Cup

In this world, Ryoma reveals the Over Lord's existence for his presentation, founding a piece of slab and its source. When the slab is destroyed, his camera is broken and recently attacked by an entity of Forbidden Fruit named Kougane. Trying to defend himself as Duke, but Kougane's hopper infects him and causes his death, at same time the camera focuses on Lapis, whom happens to witness his demise. His camera recording is soon found by Mitsuzane, shortly when Kougane's hopper is about to infect the young Kureshima, but Mitsuzane quickly noticed it and was able to prevent himself from being infected like what happened to his older brother, Takatora.

Gaim Gaiden: Kamen Rider Zangetsu

To be added

Gaim Gaiden: Kamen Rider Baron

To be added

Gaim Gaiden: Kamen Rider Duke

44bd4fd7

To be added

Video Game appearances

Kamen Rider Battle: Ganbarizing

Duke is among the vast majority of Kamen Riders that are available in this arcade game. Notably, he is shown to use the Legend Rider Lockseed to assume Wizard Arms.

Arms

Like the Armored Riders and his fellow New Generation Riders, Kamen Rider Duke's forms are called Arms (アームズ Āmuzu). His Genesis Driver announces "Soda" (ソーダ Sōda) before every transformation.

By pushing the Genesis Driver's Seaboll Compressor into the Energy Lockseed after transforming from one to two times, Duke can activate one of two finishing moves based on his current Arms form: Squash (スカッシュ Sukasshu) or Sparking (スパーキング Supākingu). In addition to the Genesis Driver's finishing moves, Duke can perform a Sonic Volley (ソニックボレー Sonikku Borē) finishing attack by inserting an Energy Lockseed into the Energy Drive Bay of his Sonic Arrow.

Duke Genetic Light Wear

Genetic Ride Wear

The Genetic Ride Wear (ゲネティックライドウェア Genetikku Raido Uēa) is Duke's default form undersuit, which is briefly seen during Duke's transformation sequence before the Armor Part attaches. However, this form is completely vulnerable to any incoming attacks when shot at directly in the suit rather than at the Arms that is descending down on the Rider.

This Genetic Ride Wear was formerly Duke's normal Ride Wear when he was still using a Sengoku Driver.

When using Dragon Energy Arms, Duke's Genetic Ride Wear receives minor modifications, denoting it as a particularly powerful Arms.


Lemon Arms
Armored Rider DukeTransient

Lemon Arms

"Come On! Lemon Arms! Incredible Ryo~ma!"
―Transformation announcement[src]

Lemon Arms (レモンアームズ Remon Āmuzu) is Duke's lemon-based armored European Knight form accessed with the Lemon Lockseed.

While assuming Lemon Arms, Duke dons the Lemon Armor Part (レモンアーマーパート Remon Āmā Pāto) and his Arms Weapon is the Lemon Rapier (レモンレイピア Remon Reipia).

This was the original form of Kamen Rider Duke before Ryoma created the Genesis Driver. Once the new belt was completed, Ryoma retired his Sengoku Driver in favor of the vastly superior Genesis Driver and Energy Lockseeds.

This form is exclusive to Kamen Rider Gaim Gaiden: Kamen Rider Duke.

Lemon Energy Arms
KRGa-Dukelemonenergy

Lemon Energy Arms

"Soda! Lemon Energy Arms! Fight, Power! Fight, Power! Fight! Fight! Fight! Fight! Fi-Fi-Fi-Fi-Fight!"
―Transformation announcement[src]
  • Height: 206 cm
  • Weight: 119 kg

Original Ability Perimeters:

  • Punching power: 15.7 t.
  • Kicking power: 19.5 t.
  • Maximum jump height: 22 m. (72 ft.)
  • Maximum running speed: 100 m. per 6.4 sec.

Lemon Energy Arms (レモンエナジーアームズ Remon Enajī Āmuzu) is Duke's default lemon-based armored European Knight/Archer form. Accessed through the Lemon Energy Lockseed, this form bears the Lemos Headpiece (レーモスヘッドピース Rēmosu Heddopīsu) helmet with the Steering Eye (ステアリングアイ Sutearingu Ai) visor. This form debuts in episode 14, but its transformation sequence debuts in episode 28.

While assuming Lemon Energy Arms, Duke dons the Lemon Energy Armor Part (レモンエナジーアーマーパート Remon Enajī Āmā Pāto) and his Arms Weapon is the Sonic Arrow.

Compared to his fellow New Generation Riders, Duke has the hardest punches and kicks. However, his agility stats are subpar. Ryoma later tweaks his Genesis Driver to increase the overall performance of Duke's stats, allowing him to combat Over Lord Shinmugurun with relative ease whereas Gaim Kachidoki Arms struggled to fight against Shinmugurun. In episode 40, Duke also has an invisible/camouflage ability to manage escaping when Redyue uses hypnosis to channeling Gaim to see his vision.

This Arms has two Rider Shooting finishing attacks.

  • Genesis Driver Finisher:
    • Unnamed finisher: Duke activates the Squash function on his Genesis Driver and fuels all the energy from the Lemon Energy Lockseed into his body, which is then converted into multiple illusions of himself that surround the target before he executes his Sonic Arrow's standard Lemon Energy-like finishing attack.
  • Sonic Arrow Finisher:
    • Sonic Volley (ソニックボレー Sonikku Borē): Duke locks the Lemon Energy Lockseed into the Sonic Arrow and fires a powerful arrow shot that when it hits a target forms a lemon slice for a brief second before exploding.
      • Duke's second Sonic Volley much like the combination of himself's Lemon Energy Squash finisher and Baron's shooting version Sonic Volley: First his Sonic Arrow shows extending, then he shoots a powerful arrow shot that Lemon pierces through the target.

Appearances: Gaim Gaiden: Duke, Gaim Episodes 14, 18, 19, Gaim Gaiden: Zangetsu, Gaim 28, 31, 32, Golden Fruits Cup!, Gaim 38-41, 43, Final Stage

Dragon Energy Arms
Duke Dragon Energy Arms

Dragon Energy Arms

"SODA! Dragon Energy Arms! (Fast techno music)"
―Transformation announcement[src]
  • Height: 206 cm
  • Weight: 119 kg

Availability Perimeters:

  • Punching power: 15.7 t
  • Kicking power: 19.5 t
  • Maximum jump height: 22 m
  • Maximum running speed: 100 m. per 6.4 sec.

Dragon Energy Arms (ドラゴンエナジーアームズ Doragon Enajī Āmuzu) is Duke's pitaya-based armored European Knight/Archer form, as well as his final form, accessed through the Dragon Fruits Energy Lockseed.

While assuming Dragon Energy Arms, Duke dons the Dragon Energy Armor Part (ドラゴンエナジーアーマーパート Doragon Enajī Āmā Pāto) and his Arms Weapon is the Sonic Arrow.

This Arms has two finishing attacks.

  • Genesis Driver finisher:
    • Unnamed Rider Slash: Duke activates the Squash function on his Genesis Driver and fuels all the energy from the Dragon Fruits Energy Lockseed into his body, which is then converted into Sonic Arrow, before he executes Pitaya-shaped energy slash attack.
  • Sonic Arrow finisher:
    • Sonic Volley (ソニックボレー Sonikku Borē): Duke locks the Dragon Fruits Energy Lockseed into the Sonic Arrow and fires a powerful arrow shot that when it hits a target forms a Asian lung energy for a brief second before exploding.

This form is exclusive to Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle.

These Arms involve Lockseeds that are normally used by a different New Generation Rider. None of these Arms were assumed on-screen, but can be simulated via the Arms Change toyline.

Cherry Energy Arms
Duke Cherry Energy

Cherry Energy Arms

"Soda! Cherry Energy Arms! (Techno beat music)"
―Transformation announcement[src]

Cherry Energy Arms (チェリーエナジーアームズ Cherī Enajī Āmuzu) is Duke's cherry-based armored European Viking/Archer form. Accessed through the Cherry Energy Lockseed (reserved for Sigurd), this form bears the Cher Headpiece (チェルヘッドピース Cheru Heddopīsu) helmet with the Steering Eye (ステアリングアイ Sutearingu Ai) visor.

While assuming Cherry Energy Arms, Duke dons the Cherry Energy Armor Part (チェリーエナジーアーマーパート Cherī Enajī Āmā Pāto) and his Arms Weapon is the Sonic Arrow.

Peach Energy Arms
Duke Peach Energy Arms

Peach Energy Arms

"Soda! Peach Energy Arms! (Arabian techno music)"
―Transformation announcement[src]

Peach Energy Arms (ピーチエナジーアームズ Pīchi Enajī Āmuzu) is Duke's peach-based armored Arabian Soldier/Archer form. Accessed through the Peach Energy Lockseed (reserved for Marika), this form bears the Momoc Headpiece (モモックヘッドピース Momokku Heddopīsu, lit. "Pink Headpiece") helmet with the Steering Eye (ステアリングアイ Sutearingu Ai) visor.

While assuming Peach Energy Arms, Duke dons the Peach Energy Armor Part (ピーチエナジーアーマーパート Pīchi Enajī Āmā Pāto) and his Arms Weapon is the Sonic Arrow.

Melon Energy Arms
Duke Melon Energy

Melon Energy Arms

"Soda! Melon Energy Arms! (Japanese techno music)"
―Transformation announcement[src]

Melon Energy Arms (メロンエナジーアームズ Meron Enajī Āmuzu) is Duke's Yubari King cantaloupe-based armored Japanese Samurai/Archer form. Accessed through the Melon Energy Lockseed (reserved for Zangetsu Shin), this form bears the Barilon Kabuto (バリロンカブト Bariron Kabuto, lit. "Barilon Helmet") helmet with the Steering Eye (ステアリングアイ Sutearingu Ai) visor.

While assuming Melon Energy Arms, Duke dons the Melon Energy Armor Part (メロンエナジーアーマーパート Meron Enajī Āmā Pāto) and his Arms Weapon is the Sonic Arrow.

The Rider Arms (ライダーアームズ Raidā Āmuzu) are forms based on past Kamen Riders. Inexplicably, the New Generation Riders are capable of using the Legend Rider Lockseeds despite none of them being Class S Energy Lockseeds. All of these forms is exclusive to Kamen Rider Battle: Ganbarizing. However, some of these forms are also used in the norm by other Armored and New Generation Riders.

Wizard Arms
DukeWizard

Wizard Arms

"Liquid! Wizard Arms! Shabadoobi Showtime!"
―Transformation announcement[src]

Wizard Arms (ウィザードアームズ Uizādo Āmuzu) is a Legend Rider Arms based on Kamen Rider Wizard's Flame Style, which is accessed through the Wizard Lockseed.

While assuming Wizard Arms, Duke dons the Wizard Armor Part (ウィザードアーマーパート Uizādo Āmā Pāto) and his Arms Weapon is the WizarSwordGun.

Hakaider

Hakaider

  • Height: 200 cm
  • Weight: 150 kg

Original Ability Perimeters:

  • Punching power: 23.7 t
  • Kicking power: 49.2 t
  • Maximum jump height: 17 m
  • Maximum running speed: 100 m per 5.4 sec.

Ryoma temporarily transplants his brain into the body of the android Hakaider. In this form, he has greater strength than even Gaim's Kachidoki Arms, which he managed to overwhelm in the episode. Hakaider also proves to have great durability and is a skillful fighter. However, it was revealed that Hakaider made Ryoma become crazier and more violent. As a result, he wanted to destroy anything, mostly Kikaider. In the end, Ryoma transplants his brain back into his human body, scared of how dangerous Hakaider can be.

This form is exclusive to Gaim Episode 30.

Equipment

Devices

  • Genesis Driver - Transformation device (taken by Yoko Minato to transform into Marika after Ryoma's death, replacing her own which he had disabled). Obtains a new one to use as Mecha Ryoma Sengoku, reconstructed by Megahex, only to be taken by Takatora Kureshima to transform into Zangetsu Shin, in the same case as Yoko did.
  • Sengoku Driver - Initial transformation device
  • Lockseeds - Gives access to Duke's Arms changes, depending on which lock is used

Weapons

Behind the scenes

Portrayal

Ryoma Sengoku is portrayed by Tsunenori Aoki (青木 玄徳 Aoki Tsunenori),[1] who previously portrayed Aguri KusugamiIcon-crosswiki in Garo: Yami o Terasu MonoIcon-crosswiki. His character in that show also used a bow and arrow for weapons similar to his current character's Kamen Rider alter ego.

As Kamen Rider Duke, his suit actor is Kenji Tominaga (富永 研司 Tominaga Kenji) who was previously the suit actor for Kamen Rider Kuuga, Kamen Rider Bujin Gaim and Kamen Rider Fifteen. As Hakaider, his suit actor is Eitoku (永徳) who is also the suit actor for Kamen Rider Baron and Lord Baron.

Notes

  • He is the only New Generation Rider in the series whose Genesis Driver has a transformation announcement that says more than just "Soda! (Fruit) Energy Arms!" similar to the Armored Riders' Sengoku Drivers.
    • This is most likely related to his claim that the extra part of the announcement in the Sengoku Drivers were a "guilty pleasure" of his.
      • This "guilty pleasure" is further alluded to in the transformation announcement for Duke Lemon Arms, which praises Ryoma himself.
    • The movie-exclusive Kurokage Shin's Matsubokkuri Energy Arms also has a transformation phrase.
  • Contrary to his Machiavellistic nature, Ryoma seemed genuinely concerned for Takatora's well-being after he was hospitalized following the initial testing of the Lockseeds and Sengoku Drivers. It is unknown if this was an act or he genuinely held Takatora in high respect at one point.
  • Foreshadowing to Ryoma's anger towards people who evolve without his assistance can be seen with Kouta's forms. When Kouta used the Jimber forms, accessed using his Energy Lockseeds, he didn't seem to mind and the closest thing he ever got to some form of concern is just wondering who managed to give him the Genesis Core, but other than that expressed intrigue. When Kouta used Kachidoki for the first time, he got notably upset over it. This was demonstrated again during his battle against Kaito following his transformation into Over Lord Baron, where he expressed disgust at the idea of a new world being made with no attribution to his inventions.
    • This might also put a new interpretation to his reaction to Hakaider after he put his brain back in his body, seeing as he was horrified by its sheer power. It could be that he was horrified at the fact that someone managed to create something that he had no part of and that was potentially more powerful than what he could create.
  • His cyborg appearance resembles Bane's incarnation from the Batman film "The Dark Knight Rises"
    • During his death, his left eye is damaged revealing a cyborg red eye underneath. This is similar to the damaged appearance of the T-800 from the first Terminator film.
  • He is the only New Generation Rider to use two different Energy Lockseeds.
  • Production-wise, Ryoma would be the first user of the Dragon Fruits Energy Lockseed, but Alfred would be the first, chronologically-speaking.
    • He would, however, be the first to use the complete version, and therefore the first to use it for his Final Form.
  • He is one of two Armored turned New Generation Riders to have the same Ride Wear when transforming with two different belts. The other to have this distinction would be Kaito Kumon.
    • Oddly enough, his helmet still possessed the drinking straw-like details even when he was using a Sengoku Driver. The straw-like details were unique features found on the helmets of the main four New Generation Riders. Production-wise, this was likely to save money on crafting a new helmet, though in-story, it may suggest that Ryoma had designed his own Sengoku Driver suit to match the Genesis Driver's form he was planning even before the new Drivers were finished.
  • He's the fourth Gaim Rider to have an upgraded form while wearing one belt. Although it was only his head when transformed into Dragon Energy Arms.
  • Chronologically, he's the first Armored turned New Generation Rider to use an upgraded version of their primary normal Lockseed afterwards. Takatora was the first before Ryoma by production.
  • Ryoma, along with Yoko Minato, holds the record of appearing in the most Kamen Rider Gaim Gaiden installments, having appeared in Gaim Gaiden Zangetsu, Gaim Gaiden Baron, and Gaim Gaiden Duke.
  • Ryoma is the fourth (chronologically, the first) Rider to change drivers. The first being Takatora, second being Kaito, and third being Mitsuzane.
    • Unlike Takatora who changed his Rider name from Zangetsu to Zangetsu Shin after acquiring the Genesis Driver, Ryoma was not called Duke Shin, even though he upgraded the Lemon Lockseed into the Lemon Energy Lockseed, chronologically speaking. Like Kaito, Ryoma's Ride Wear remains the same with both drivers. Thus, his Rider name remained the same even after changing from the Sengoku Driver to the Genesis Driver.

Legend Rider Lockseeds

Appearances

Main article: Ryoma Sengoku/Appearances

References

Hakaider's stats on Kikaider REBOOT Official Website
Icon-gaim Kamen Rider Gaim
Armored Riders
TV Series: Kouta Kazuraba - Kaito Kumon - Mitsuzane Kureshima - Takatora Kureshima - Hideyasu Jonouchi - Ryoji Hase - Oren Pierre Alfonzo - Zack - Kurokage Troopers
Movie/Special/Stageshow-exclusive: Bujin Gaim - Ren Aoi - Lapis - Kougane - Touka Akatsuki - Shura - Kugai Kudo - Maja
New Generation Riders
TV Series: Takatora Kureshima - Ryoma Sengoku - Yoko Minato - Lock Dealer Sid - Kaito Kumon - Mitsuzane Kureshima
Movie-exclusive: Peko (alternate) - Alfred
Rider Gear
Sengoku Driver - Genesis Driver - Lockseeds - Armor Parts - Arms Weapons - Musou Saber - Sonic Arrow
Rider Machines
Sakura Hurricane - Rose Attacker - Dandeliner - Tulip Hopper
Allies
TV Series: Mai Takatsukasa - Yuya Sumii - Akira Kazuraba - Chucky - Rica - Rat - Peko - Kiyojiro Bando - Iyo - Kikaider (REBOOT)
Movie-exclusive: Ieyasu - Shu Aoi - Saki Aoi - Shapool - Azami
Beat Rider Teams: Team Gaim - Team Baron - Team Raid Wild - Team Invitto - Team Red Hot - Team Soten - Team Pop Up - Team Spingere - Team Boost - Team Mouryou - Team Severe Beat

Locations: Zawame - Charmant - Yggdrasill Tower

Yggdrasill Corporation
Takatora Kureshima - Mitsuzane Kureshima - Ryoma Sengoku - Lock Dealer Sid - Yoko Minato - DJ Sagara - Amagi Kureshima
Remnant groups: Black Bodhi - Neo Baron

Zawame City Restoration Bureau

Inves
Femushinmu (Over Lord Inves): Rosyuo - Demushu - Redyue - Dyudyuonshu - Grinsha - Shinmugurun - Over Lord Queen
Lapis - Kougane
Other Over Lords: Lord Baron - Tyrant
Advanced Inves: Byakko Inves - Seiryu Inves - Hekija Inves - Shika Inves - Kamikiri Inves - Komori Inves (Mutant) - Inoshishi Inves - Lion Inves - Yagi Inves
Elementary Inves

Helheim (Forest) - Forbidden Fruit - Man of the Beginning - Woman of the Beginning - Femushinmu Planet - Planet of Helheim

Other Villains
Grasshopper Monster - Badan Empire - Pitcher Plant Monster - Megahex - Hakaider (REBOOT)
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