This article is about a/an rider in Kamen Rider W.

Kamen Rider Double Left Half Side (Joker, Trigger, Metal) Kamen Rider Joker
Shotaro Hidari
Gender:	Male
Series:	Kamen Rider W
Motif:	W, Joker, Shadow, Ghost
Rider Type:	Hero
Homeworld:	Earth (Main Timeline Continuity)
First Appearance:	Kamen Rider Decade: All Riders vs. Dai-Shocker (First Debut) The W Search/Two Detectives in One (Series)
Last Appearance:	Kamen Rider x Kamen Rider Wizard & Fourze: Movie War Ultimatum
Number of Episode Appearances:	49 (W) 10 (Movies)
Actor:	Renn Kiriyama Issei Kakazu (Child) Yukimasa Natori (Old))
Kamen Rider Double Left Half Side (Joker, Trigger, Metal) Kamen Rider Joker

Shotaro Hidari (左 翔太郎, Hidari Shōtarō) is the left hand side of Kamen Rider Double, but also a rider in his own right as Kamen Rider Joker. A self-dubbed "hardboiled detective", he dresses in late-1930s style, favoring fedora hats and waistcoats. He is often called 'half-boiled' by his friends, however, because he cannot fully shut out his doubts and often acts according to his feelings, contrary to his hard-boiled aspirations. He works as a private detective in the city of Fuuto.

Contents 1 Shotaro Hidari 2 Personality 3 Abilities 4 Gaia Memories 5 Kamen Rider Joker 5.1 Equipment 5.1.1 Lost Driver 5.1.2 Gaia Memories 6 Behind the scenes 6.1 Portrayal 6.2 Trivia 7 Gallery

Shotaro HidariEdit

Vowing to stop anyone that makes his city cry after, as a child, witnessing Sokichi Narumi's first fight with the Spider Dopant, Shotaro eventually became Sokichi's protege. His final job with Sokichi involved investigating a mysterious organisation, at the behest of an equally mysterious client. While infiltrating a Gaia Memory research building, Shotaro met Philip for the first time. However, due to Shotaro's recklessness, their cover was blown and it indirectly led to Sokichi being shot to death. Sokichi then left Shotaro to continue on in his stead, giving Shotaro his prized fedora in his final moments. Shortly afterwards, Phillip and Shotarou used the Double Driver- which Sokichi had been carrying, perhaps with the intent that he become the body of W- to transform for the first time, in order to escape.

Refusing to let his mentor's memory be in vain, and to atone for his mistake, Shotaro works to stop the Dopant crime wave by being the man on the street, contacting his various informants and transforming into Kamen Rider Double by providing his body for the combination.

Shotaro's physiology is not ideal for Gaia Memory use, and he was never Shroud's ideal choice for the 'body' half of W. Because of this, he had trouble maintaining their Rider form when Philip's power was evolving. However, he later proves that he has a knack for being the 'wild card', being incredibly difficult to predict in such a manner- this quality leads not only to him resonating strongly with the Joker Memory, but also displaying the ability to exceed expectations and become Kamen Rider Double CycloneJoker Xtreme by sheer willpower.

Shotaro also appears to be the one who came up with the names of Double's finishers, as demonstrated in episode 16 when he decided to call FangJoker's Maximum Drive "Fang Streiser". Though this is ostensibly to enable him and Philip to synchronise themselves better, it seems Shotaro simply likes doing it, as he names his attacks when he fights solo as well.

PersonalityEdit

Shotaro's basic personality is an homage to the fictional detective Philip Marlowe (ironically, his partner's namesake), as is his aspiration to be a hard-boiled detective. Shotaro's decisiveness and honed detective intuition make him a remarkable detective even without the help of his partner. However, his friends and contacts often refer to him as 'half-boiled', as he wears his heart on his sleeve and let his emotions get in the way of making the cruel yet necessary decisions that real hard-boiled detectives, such as his mentor, would make. Even though his emotion and dedication to the choices that he makes causes him to come to blows with his partner and others, there is an affection to their calling him 'half-boiled', and eventually he accepts it as his way of doing things. Despite his flighty exterior Shotaro cares deeply about his clients, his friends, and his city and will do anything in his power to protect them.

Shotaro is a contrast to his partner Philip, showing great capacity for emotion and empathy as opposed to Philip's cold and logical thinking. Because of his emotional side, he is capable of understanding the emotions and actions of others. It is continual exposure to Shotaro's emotional nature that leads to Phillip warming up to his own emotions. Due to his aspiration to be hard-boiled, Shotaro usually tries to be the serious and cool-looking one in his group, but that often results in him often being the one who is made a fool of by his friends. Shotaro takes the role of Kamen Rider Double very seriously, and with great pride, as the name "Kamen Rider" was given to them by the citizens themselves. As such, he tries to make a good name for Kamen Rider Double.

Shotaro has a habit of flicking his left wrist in the air before and during battles, similar to Takumi Inui's habit of flicking his right wrist at his side after transformation.

AbilitiesEdit

In combat Shotaro shows great fighting skills outside of using Gaia Memories, even in a weakened state of becoming an old man due to the Old Dopant. He has also shown a great skill in locating pets easily, moreso than finding people, first seen when trying to locate a cat not knowing it was a trick and finding Mick.

Gaia MemoriesEdit

The Gaia Memories (ガイアメモリ, Gaia Memori^?) are mysterious USB flash drives imbued with the powers of the Earth itself. Originally created by Shroud after leaving the Sonozaki Family's Museum organisation, these Gaia Memories end up in the possession of Shotaro and Philip, and can only be used through the Double Driver or a Lost Driver. Two can be inserted into the Double Driver, allowing Shotaro and Philip to transform into Kamen Rider Double. Shotaro's left-half Memories called Body Memories (ボディメモリ, Bodi Memori^?) determine the type of attack or weaponry that Double uses.

• Joker Memory (ジョーカーメモリ, Jōkā Memori^?): The Joker Memory, also known as the Trump Card Memory (切札の記憶, Kirifuda no Kioku^?), allows the user to increase fighting potential, becoming the Skill Warrior (技戦士, Waza Senshi^?). When used, half of Kamen Rider Double becomes the black Trumping Left Half (切り札の左半身, Kirifuda no Hidari Hanshin^?). When the Joker Memory is placed in the Maximum Slot on the Double Driver, it allows Double to execute the Joker Extreme Rider Kick. Shotaro can also use the T2 version of the Joker Memory with a Lost Driver to become Kamen Rider Joker. Later, after T2 Joker memory dissolved and Philip disappears, Shotaro use the original Joker Memory to transform into Kamen Rider Joker.

• Metal Memory (メタルメモリ, Metaru Memori^?): The Metal Memory, also known as the Steel Memory (鋼鉄の記憶, Kōtetsu no Kioku^?) or the Fighter Memory (闘士の記憶, Tōshi no Kioku^?), empowers the user with great strength, becoming the Superpowered Warrior (怪力戦士, Kairiki Senshi^?). When used, half of Kamen Rider Double becomes the silver Fighting Left Half (闘士の左半身, Tōshi no Hidari Hanshin^?). First used in All Riders vs. Dai-Shocker.

• Trigger Memory (トリガーメモリ, Torigā Memori^?): The Trigger Memory, also known as the Sniper Memory (銃撃手の記憶, Sogekishu no Kioku^?), turns the user into an expert marksman, becoming the Gun Warrior (銃戦士, Jū Senshi^?). When used, half of Kamen Rider Double becomes the blue Sniping Left Half (狙撃手の左半身, Sogekishu no Hidari Hanshin^?).

Kamen Rider JokerEdit

Through the power of the T2 Joker Memory and the Lost Driver, Shotaro uses the power of the Joker Memory to its full potential. When the Memory is placed into the Maximum Slot, Joker executes either a Rider Punch or Rider Kick Maximum Drive. Along with Kamen Rider Cyclone, the two can execute Double Rider Kick Maximum Drive. This form is lost after the T2 Joker Memory is taken by NEVER; But, after Philip dissolves into data and becomes one with the Earth, Shotaro finds in the present Philip gave to him, the Lost Driver from the incident. He uses his original Joker Memory in place of the T2 Joker memory to become Kamen Rider Joker again. However, one year later, Shotaro is overwhelmed by the newly formed EXE group until Philip returns. It is shown in Movie War Megamax, that if Philip is busy, he will swap out the Double Driver for the Lost Driver.

EquipmentEdit

Lost DriverEdit

With Shotaro unable to use the Double Driver he uses a Lost Driver he received from Skull instead to transform. This Memory Driver was lost in the battle with Kamen Rider Eternal, but Shroud gave Philip another Lost Driver and Philip kept it, which later he gives to Shotaro. To transform Shotaro places the Joker Memory in the Memory Slot to transform into Kamen Rider Joker.

Gaia MemoriesEdit

• T2 Joker Memory: The T2 Joker Memory was one of the 26 T2 Gaia Memories and the first Gaia Memory used by Kamen Rider Joker, both for the transformation and Finisher. The T2 Joker memory was the Sole memory that NEVER was unable to locate during their reign over Fuuto. However, after being visited by Kamen Rider Skull, Shotaro realizes that the Memory was what created the recent hole in the Agency's ceiling, having been called to him as he was the person that resonated most strongly with it. He then takes the Memory and uses it in unison with the Lost Driver Skull gave him to combat the T2 Dopants and rescue Philip. However, the T2 Joker Memory was lost when Eternal was able to defeat Joker using the T2 Unicorn Memory to execute his own Rider Punch Maximum Drive. It was then destroyed when Double CJGX's Golden Xtreme Rider Kick destroyed Eternal.
• Joker Memory: After the T2 Joker Memory was destroyed and Philip dissolved into data completely, Shotaro uses the original Joker Memory in place of its successor. There is no noticeable difference in Kamen Rider Joker's form or abilities when using this Memory; if anything, it's possible the T2 Memory may grant an increase in basic power.

Behind the scenesEdit

PortrayalEdit

Shotaro Hidari is portrayed by Renn Kiriyama (桐山 漣, Kiriyama Ren^?). As a child, Shotaro is portrayed by Issei Kakazu (嘉数 一星, Kakazu Issei^?). Kakazu later portrays Akira Aoyama in the television series' final episode.

As Kamen Rider Double (and Kamen Rider Joker), his suit actor was Seiji Takaiwa (高岩 成二, Takaiwa Seiji^?), who has been the suit actor for the majority of leading Heisei Kamen Riders (except Kuuga and Hibiki).

TriviaEdit

• He shares the same first name with Shotaro Ishinomori, the creator of the franchise, as well as his full name being a play on Kotaro Minami, whose original Black form is what Kamen Rider Joker was based on. Renn Kiriyama, incidentally, has admitted to being a fan of Kamen Rider Black.
• His surname is literally translated as "left" (左, hidari^?), as his Gaia Memories provide the left side of any Double formation.
• As Kamen Rider Joker, he resembles a modern version of Kamen Rider Black. Ironically, when Double makes their first appearance in Kamen Rider Decade: All Riders vs. Dai-Shocker, the side that is facing the alternate Shadow Moon (the original Shadow Moon being Black's archenemy) is Joker, which makes him see him as a black rider, while Decade facing Cyclone sees him as green.
• Shotaro is similar to Archie Goodwin in that he investigates and gathers evidence for Philip, and tends to narrate in his spare time. Both are also skilled detectives in their own right.
• In Kamen Rider × Kamen Rider Fourze & OOO: Movie War Mega Max, Philip mentions that Gentaro looks similar to Shotaro.

GalleryEdit

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