Eiji Hino

Kamen Rider OOO (仮面ライダーOOO(オーズ), Kamen Raidā Ōzu) is the main protagonist and one of the main characters in the series of Kamen Rider OOO. His title is pronounced similarly to both "Os," refers to the three O's in the series title which represent the character's transformation items, as well as meaning "multiple kings" (王ｓ, Ōzu). The three O's also represent the infinity symbol with an additional circle over the center, stating that Kamen Rider OOO is Over Infinity. His debut was a cameo in the film Kamen Rider Double Forever: A to Z/The Gaia Memories of Fate where he fights against the Luna Dopant. Before Eiji Hino, there was a previous Kamen Rider OOO who had fought and sealed the Greeed away. Also Kamen Rider OOO is the 100th Kamen Rider to be created.

Eiji Hino
Eiji Hino (火野 映司, Hino Eiji, portrayed by Shu Watanabe) is the son of an politician who travels the world with his grandfather. While at Africa a year prior to the series, Eiji attempted to use his fortune to help out a village. However, his money was used to fund a civil war that cost the life of a little girl Eiji befriended whose death he was unable to stop while he was forced to looked on helplessly. Though the Hino family used his sob story to get the people's support, the ordeal caused Eiji to lose any desire and become willing to help those in need, going so far to even risking his neck for complete strangers.

He returned to Japan to fund for more of his travels. His latest part-time job at the Kougami Art Museum ends due to the destruction of the museum around him, Eiji takes a strange red coin he found while off duty which he thinks is his pay. This causes a disembodied arm to begin to follow him around, until the arm announces that it is called Ankh and is one of the ancient beings known as the Greeed, and he needs Eiji's help to become King. When they are attacked by a monster called a Yummy, Eiji risks his life to rescue Ankh, who in return saves him and gives Eiji two more strange coins, calling them Medals, and a belt, enabling Eiji to transform into Kamen Rider OOO.

After destroying the Yummy and further encounters with the Greeed, people from the Kougami Foundation begin to approach Eiji, offering their assistance in the fight against the Greeed and Yummy, but their true motives are not clear. He also gets a job and housing at the Cous Coussier after the owner Chiyoko Shiraishi finds out that he is a world traveler. In the process, joined by Akira Date, Eiji learns more of the Greeed's desire to become whole and the reason why Ankh is unable to assume his complete form. However, things changed when Eiji ended up becoming a host to half of a set of Purple Core Medals that react to his lack of selfish desires, the same presumed reason why he is able to use Kamen Rider OOO's powers without any sign of going berserk so far like the First OOO, with dangerous consequences. Soon after, Eiji learns from Kousei Kougami, the Foundation's owner, that the only way to counteract the purple Core Medals is to acquire a desire of his own, something he is yet capable of.

Later on, he turns into the dinosaur-like Eiji Greeed (映司グリード, Eiji Gurīdo) after absorbing two more purple Core Medals from the other Purple Greeed, Kiyoto Maki, in a bid to make him go beserk. However, it was by then Eiji remembers his desire is to have the power to help others and later agrees to Kougami's suggestion to absorb all the Cell Medals in the Kougami Foundation's possession to achieve that desire. However, it does not halt Eiji's Greedification during his his final battle when he uses all the Cell Medals in his body in a risky attack that fails to destroy Maki. But before Eiji fully became a Greeed, Ankh gives Eiji his last three Core Medals, disappearing from Shingo and allowing Eiji to transform to defeat Maki, resulting in the destruction of the Core Medals along with Ankh's. As a now-normal Eiji falls back to the Earth, Ankh appears to him as his disembodied arm, saying his farewells, before disappearing into half of the broken Taka Medal that once held his consciousness. Saved by Kamen Rider Birth, receiving the other half of Ankh's Core Medal that Hina found, Eiji leaves Japan and resumes his journey around the world while find the way to fix the broken Taka Medal with a spectral Ankh arm following him.

Personality
Despite often coming off as happy-go-lucky in his personality, Eiji is actually quite strong-willed and was easily able to pick up on the fact he could use Ankh's need for him and the OOO Driver to keep the Greeed in line. Another defining trait is Eiji will fight to protect anyone in need, even complete strangers and at the risk of his own life. This stemmed after his regret from not saving the little African girl he befriended during a civil war which his family fortune started. He keeps a collection of coins and almost always has pairs of underwear of different designs and colors which he at times even gives to others. Eiji possesses no selfish desires which made him ideal for being OOO but also became a weakness once the Purple Core Medals went into his body.

Combos
After Eiji inserts three Core Medals into the OOO Driver, he scans them with the O-Scanner, and then holds the O-Scanner up to his chest, he transforms into Kamen Rider OOO. Like Kamen Rider Double before him, OOO has multiple combinations of forms he can access referred to as Combos (コンボ, Konbo).



Each aspect of a Combo gives OOO different powers and weaknesses. In a fight, if a particular section of OOO receives a significant amount of damage, the power of that section will be disrupted. If it takes further damage, the power will cut off completely and the section's corresponding Medal will be forcefully ejected from the OOO Driver, canceling the transformation. In addition, single-colored Combos are incredibly taxing on Eiji's body, as they embody the full power of the corresponding Greeed and fatal fatique if using more than one full combo as first seen in episode 15. Except for Tatoba and Tamashii Combos, the only combinations with "Combo" in their name are those of a single color while other mixed color combinations are known as Random Combos (ランダムコンボ, Randamu Konbo).

Kamen Rider Birth
Statistics Ability Perimeters:
 * Height: 199 cm
 * Weight: 92 kg
 * Punch power: 3.5 t
 * Kick power: 8 t
 * Jump power: 45 m
 * Speed: 100m/5s

Like Kamen Rider OOO, Kamen Rider Birth's powers stem from the O Medals that power the Greeed and their Yummy creations. However, Kamen Rider Birth's powers originate solely from the Kougami Foundation's technology developed by Kiyoto Maki to utilize the power of the Cell Medals. On Birth's armor there are capsules called Receptacle Orbs (リセプタクルオーブ, Riseputakuru Ōbu), in which the Birth CLAWs system is installed in until a Cell Medal is used to summon the weapons. However, due to using Cell Medals as opposed to Core Medals, Birth was at a disadvantage against a single Greeed. Kamen Rider Birth's exosuit has originally an self-destruct function built into it. However, the self-destruct function has been disabled by Shintaro Goto when Kiyoto Maki has defected to Greeed side.

OOO Driver
The OOO Driver (オーズドライバー, Ōzu Doraibā) is a belt that gives Eiji Hino the ability to become Kamen Rider OOO. The belt is created from the same seal that kept the Greeed in their 800 year slumber. To transform into Kamen Rider OOO, Eiji inserts three Core Medals into the O Slater (オースレイター, Ō Sureitā), turning the O Slater on the Force Drive (フォースドライブ, Fōsu Doraibu), scanning the Core Medals with the O Scanner, and then holds the O Scanner up to his chest. According to Ankh, because it was Eiji that broke the seal on the OOO Driver itself, it will only work for him and no one else. However, someone else can perform the physical action of scanning Medals for Eiji as long as he is wearing the OOO Driver. The reason the seal broke was because of Eiji's lack of desire, which made him perfect to become OOO.

O Scanner
The O Scanner (オースキャナー, Ō Sukyannā) is a device that is able to read the energy found within O Medals. By using the O Scanner on a set of three Core Medals in the OOO Driver, it allows for the transformation into Kamen Rider OOO or one of his various Combos. By scanning the Core Medals in the OOO Driver, again, it initiates one of Kamen Rider OOO's finishing attacks known as Scanning Charges (スキャニングチャージ, Sukyaningu Chāji). The O Scanner can also be used on the Cell Medals in the Medajalibur to initiate its Scanning Charge, as well, however it has a different manner to use it's Scanning Charges. The Medajalibur's Scanning Charges are designated as "Single", "Double", or "Triple", depending if OOO has put the amount of Cell Medals, with the only difference between the Scanning Charges is the amount of energy is put out for the OOO Bash.

O Medal Holder
The O Medal Holder (オーメダルホルダー, Ō Medaru Horudā) is a special case given to Ankh by Hina Izumi after she had commissioned it while she and Chiyoko Shiraishi were in Egypt. It is able to hold 24 Medals, usually Cores. This first appears in the Kamen Rider OOO portion of Movie War Core, where Ankh gives Eiji three Medals for him to transform.

Medajalibur
The Medajalibur (メダジャリバー, Medajaribā) is a sword that serves as Kamen Rider OOO's main weapon. By inserting three Cell Medals into the Medajalibur and scanning them with the O-Scanner, it can be used to perform a slashing finishing attack called the OOO Bash (オーズバッシュ, Ōzu Basshu). Even without performing the finisher it is shown to be powerful enough to cut through anything in the line of its attack, even when it is a distance away. Interestingly when it cuts through inanimate objects like a building, the object reforms. Its name is a portmanteau of Medal and King Arthur's legendary sword, Excalibur.

Medagabryu
The Medagabryu (メダガブリュー, Medagaburyū) is Putotyra Combo's signature weapon, enabling Kamen Rider OOO to unleash the full potential of the Core Medals. It can change between its Axe Mode (アックスモード, Akkusu Mōdo) and its Bazooka Mode (バズーカモード, Bazūka Mōdo). The Medagabryu can draw out the full potential of the Cell Medals, by inserting a number of Cell Medals into the "mouth". Doing so in any Combo other than Putotyra will make it announce a Combo and a jingle remix, except for the Tajadol Combo. When Cell Medals are inserted in the Medagabryu when in the Putotyra Combo, Kamen Rider OOO can perform a Putotyranno Hissatsu (プトティラノヒッサツ, Putotirano Hissatsu) depending on the weapon's mode. When in Axe Mode, Kamen Rider OOO can perform the Ground of Rage (グランド・オブ・レイジ, Gurando obu Reiji) slash or the Strain Doom (ストレインドゥーム, Sutorein Dūmu) blast if the Medagabryu is in Bazooka Mode.

The Medagabryu can be used with other Combos in Axe Mode, but Bazooka Mode is only usable while in Putotyra Combo. The Medagabryu is the most dangerous weapon OOO can wield to the Greeed, because it has the power to destroy Core Medals, thus permamently killing a Greeed. It also can absorb a massive amount of Cell Medals to charge up its attack power, thus destroying a Greeed in one hit instantly if it properly hits.

Ride Vendor
The Ride Vendor (ライドベンダー, Raido Bendā) is OOO's and other's personal modified Honda VT 750 C2B Shadow Black Spirit mass produced by the Kougami Foundation. It can transform from its Machine Vendor Mode (マシンベンダーモード, Mashin Bendā Mōdo), where it acts as a vending machine which holds the Candroids, to its Machine Bike Mode (マシンバイクモード, Mashin Baiku Mōdo), when a Cell Medal is inserted and touching the Multi TaS Center (マルチＴaＳセンサー, Maruchi Tasu Sentā, "Touch and Scan"). This allows the Ride Vendor to remain in plain sight until needed. The Ride Vendor's transformation can also be controled remotely, but this fact is hidden from Ankh and Eiji, as Kousei Kougami wants them to be dependent on his technology so he can collect Cell Medals from Kamen Rider OOO's fights.

Toride Vendor
By combining with the Tora Candroid, the Ride Vendor can become the Toride Vendor (トライドベンダー, Toraido Bendā). As the Toride Vendor, it's speed and power is increased and can use the claw-like attachments to release Medal shaped blasts of energy. However, due to its feral nature, the Toride Vendor is only compatible with OOO while he is in his Latorartar Combo, with the machine's ability to siphon the excess energy allowing OOO to use the Combo without overexerting himself while taming the living super bike.

Candroids
The Candroids (カンドロイド, Kandoroido) are special support robots that are held within the Ride Vendor. After inserting a Cell Medal into the Ride Vendor in its vending machine mode, a beverage can-like device is "bought" from the machine. The Candroid is transformed from its Can Mode (カンモード, Kan Mōdo) into its Animal Mode (アニマルモード, Animaru Mōdo) through the pull-tab on top. Normally, a large number of them can be deployed from the Ride Vendor, but only one needs to be manually activated, the others simply activating on their own soon afterwards.
 * The Taka Candroid (タカカンドロイド, Taka Kandoroido) is a Hawk Candroid with an Animal Mode can fly, and is primarily used by the Kougami Foundation to gather Medals or performing recon. It is the first of the Candroids to appear.
 * The Tako Candroid (タコカンドロイド, Tako Kandoroido) is an Octopus Candroid, it's Animal Mode is a flexible flyer that can join with fellow Tako Candroids to form various things like roads, bungee cords, or trampolines. It flys by spinning in a helicopter fashion or like an actual octopus. And much like an actual octopus, the Tako Candroid is capable of releasing ink to aid in escape. It is the second of the Candroids to appear and the most used for support in handling Yummies.
 * The Batta Candroid (バッタカンドロイド, Batta Kandoroido) is a Grasshopper Candroid with an Animal Mode that has the ability of hopping to long distances and shoot medals. It also has the ability to transmit messages through other Batta Candroids, used as video cameras for recon purposes, or to trick people with, as was the case of Ankh tricking Uva that he left. It is the third Candroid to appear, but did not first come from a Ride Vendor, but rather as a deal proposition for Eiji and Ankh as a field test before being put into the Vendors themselves.
 * The Tora Candroid (トラカンドロイド, Tora Kandoroido) is a Tiger Candroid created by Kiyoto Maki who personally gives it to Eiji. It can enlarge itself and combine with the Ride Vendor to become the Toride Vendor. It is the fourth Candroid to appear, and is the first one to truly be of an offensive nature.
 * The Unagi Candroid (ウナギカンドロイド, Unagi Kandoroido) is a Electric Eel Candroid developed by Maki and sent to OOO by Goto (at first Eiji thought they were snakes). It is designed to gather Cell Medals more effectively with an Animal Mode that has the ability to create electric shocks, and can form a restraining cable of sorts when several Unagi Candroids link up together. They are not that durable, as outside help can remove the linked up Unagi Candroids, so long as the means isn't conductive. They are the fifth Candroid to appear.
 * The Kujaku Candroid is a Peacock Candroid developed to gather Cell Medals more smoothly, first used by Erika Satonaka to deliver the Condol Medal to Kamen Rider OOO during the rematch fight with the Lion-Kurage Yummy. It can rotate its sharp, sawblade-like tail feathers at great speeds to propel itself, create small tornados, shread through foes, and to hover in the air. They are the seventh Candroid to appear, but in it's first appearence, it was just sitting on Kougami's desk.
 * The Ptera Candroid is a Pteranodon Candroid is a next-generation Candroid developed to utilize the Cell Medal energy more efficiently. It moves better than other Candroids and can transfer information via ultrasound. Like the Taka Candroid it is capable of flight and is more useful in combat, but even then, they are not quite as durable and an enhanced Yummy can take them out in one swing if it connects. They are the eighth Candroid to appear, and once more not first used by OOO, as Dr. Maki first used them as a desperate ploy to save Chiyoko Shiraishi from his own Yummy.
 * The Torikera Candroid is a Triceratops Candroid is a next-generation Candroid developed to utilize the Cell Medal energy more efficiently. Compared to other Candroids, the Torikera Candroid seems to have very limited mobility. They seemed to be a successor to the Gorilla Candroid in the aspect of delivering Cell Medals to Birth, as well as being a ranged combat-orientated Candroid. They are the ninth Candroid to appear, and once more not first used by OOO, as Birth first used it after finding the lone Candroid in Dr. Maki's trashed lab after the latter abandoned Kougami Foundations.
 * In Kamen Rider Battle: Ganbaride, Kamen Rider OOO and Ankh have access to the Furifuri Candroid (フリフリカンドロイド, Furifuri Kandoroido), a teal-colored Candroid that when used grows several times in size and after it is shaken and opened, it releases a blast of energy in an attack called the Furifuri Can Hour (フリフリカンアワー, Furifuri Kan Awā), similar to soda can eruptions.

Appearances

 * All Episode of Kamen Rider OOO (Episode 1-48)
 * Kamen Rider Double Forever: A to Z/The Gaia Memories of Fate (Cameo)
 * Kamen Rider × Kamen Rider OOO & Double feat. Skull: Movie War Core
 * OOO, Den-O, All Riders: Let's Go Kamen Riders
 * Kamen Rider OOO WONDERFUL: The Shogun and the 21 Core Medals
 * Kamen Rider x Kamen Rider Fourze & OOO Movie War Megamax
 * OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~
 * Kamen Rider OOO Hyper Battle DVD: Quiz, Dance, and Takagarooba!?
 * Net Movie: Kamen Rider OOO Allstars: The 21 Leading Actors and Core Medals

Trivia

 * Eiji is the third of the Primary Riders becomes another Rider (Shouichi being the first, and Shinji the second).
 * He's also the second Primary to do this in a movie.
 * The count of all of his Secondary Transformations (Full Combos and Random Combos is the largest count in franchise history.
 * He is the second Rider that the final-in-series form to carry a risk of overriding his nature (with Yuusuke being the first).
 * He is also the third Heisei Rider whose powers were intended for evil intentions (the DecaDriver, being created for Shocker, is the first).