Eiji Hino

"If there is a hand reaching for help, and I don't reach out my hand when I can. The regret would make me wish I were dead... I reach out my hand, because I don't want that"

- Eiji Hino

Eiji Hino (火野 映司) is Kamen Rider OOO (仮面ライダーOOO (オーズ)). He is the main protagonist and one of the main characters in Kamen Rider OOO. He made a cameo debut in the film Kamen Rider W Forever: A to Z/The Gaia Memories of Fate where he fought against the Luna Dopant. Before Eiji Hino, there was a previous Kamen Rider OOO who had fought and sealed the Greeed away.

Past
Eiji Hino is the son of a politician who travels the world with his grandfather. During one his expeditions, he travels in Africa. During his time in Africa, Eiji attempted to use his fortune to help out a village. In turn, Eiji befriends a girl named Alfreed. Following her to her village and learning the residents as well as their culture, he is dragged into a civil war between villages. As it turns out, Cain (Alfreed's brother), became an assassin for an enemy tribe in order to survive. During the tragic moments of the civil war, Alfreed is eventually killed in the war and Eiji is held captive for ransom. However, his family only paid for his ransom, allowing him to escape Africa. However, his family used his tragedy to get the people's support. Though Eiji ultimately refers to this moment as his greatest regret,  the ordeal caused Eiji to lose any selfish desire and become willing to help those in need, going so far to even risking his life for complete strangers.

Kamen Rider OOO
He returned to Japan to fund for more of his travels. His latest part-time job, a security guard at the Kougami Art Museum, ends due to the destruction of the museum around him due to him being drugged to sleep by some would-be robbers. 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.

Eiji appears to aid Kamen Rider Double on a rooftop as OOO, providing him cover during the Futo Invasion by NEVER, allowing Double to reach the Futo Tower as OOO defeats Luna Dopant.

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 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 undergoes his Greeed transformation, Ankh gives Eiji his last three Core Medals, disappearing from Shingo and allowing Eiji to transform to defeat Maki, resulting in the disappearance of the Core Medals, with the Core Medal that houses Ankh's consciousness splitting in half.

As a now-normal Eiji falls back to the Earth, Ankh appears to him as his disembodied arm, bidding 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, using Ankh's/Shingo's iPhone to keep in touch with his friends while trying to find a way to fix the broken Taka Medal with a spectral Ankh arm following him.

Movie War Mega Max
Eiji returns to Japan as he sees Ankh waiting for him in the airport, curious as he still holds Ankh's broken Taka Core Medal. Appearing to aid Date and Goto, he regains several of his Core Medals from Kamen Rider Poseidon, allowing him to trade blows with Poseidon until he realizes that Poseidon's host, Michal, is suffering. After meeting Michal, Eiji is able to separate the Poseidon entity from Michal. Giving advice to Michal, Michal regains the courage to assume his original form as Kamen Rider Aqua. Together, Eiji and Michal defeat Poseidon. Eiji gives his farewell to Ankh, realizing that he's from the future, but is reassured that he will resurrect Ankh one day. A moment later, Foundation X attacks Eiji, taking Poseidon's Core Medals. Recruiting Gentaro from the Kamen Rider Club, he meets up with Shotaro and Philip, explaining what Foundation X is after. Along with Gentaro, the two free the Seven Legendary Riders as Eiji and Gentaro runs to the Exodus. Meeting with Kamen Rider Aqua once again, Eiji receives the Super Core Medals, effectively transforming into the Super Tatoba Combo. Together with Fourze, the two defeat the Super Galaxy King and Eiji resumes his journey of restoring Ankh's Taka Core Medal.

Kamen Rider OOO (novel)
In the aftermath of Mega Max, Eiji returns to Africa to stop the still ongoing civil war. Using the OOO Driver, he uses the Tatoba Combo as a diversion to draw fire, uses the Gatakiriba Combo to destroy the soldiers' guns, uses the Latorartar Combo to destroy tanks, and uses the Sagohzo Combo to stop rocket launchers. Using the Tajadol Combo, Eiji wipes out the air forces while rescuing the pilots from their deaths. In the dried out deserts, Eiji uses the Shauta Combo in order to create rain. The enemy tribe slowly starts to fall back with Eiji's intervention and the war slowly ends.

Super Hero Taisen
During Super Hero Taisen, Eiji is attacked by the Dai-Zangyack army and is sent to the Dark Dimension. Eiji later reappears teaming up with the Gokaigers, lending them his Core Medals, which turned into Ranger keys. Joe refers to this as OOO's Grand Power.

Movie War Ultimatum
When Koyomi came under attack by Ghouls after all the Riders entered Yu Kamimura's Underworld, Eiji appears and fights them off. Explaining that Gentaro called for help, he explains that Riders should always do what they can to help each other out. This makes Koyomi's Please Ring glow, and within the Underworld, projections of Eiji (along with Shotaro, Phillip, Ryu, and Goto) giving the kids Rider Rings. Touching the Rings on Haruto's belt casts a spell that summons Eiji and the other Riders, giving Wizard and Fourze support as they defeat the Akumaizers.

Kamen Rider Wizard
OOO appears with all the Heisei Riders from Kuuga to Fourze, led by Decade, in a special two-parter after the finale, The Kamen Rider Rings and Neverending Story.

Kamen Rider Taisen
OOO joins the Heisei Riders in their war with the Showa Riders in Zawame City.

At the climax, OOO is one of the surviving Riders in the battle between Heisei and Showa. He attempts to perform his Tatoba Kick on Riderman, but is defeated by his Rope Arm, transforming into his Lockseed. Gaim is soon left as the last Rider standing before Ambassador Darkness of the Badan Empire reveals himself to be Ryo Murasame (Kamen Rider ZX). Together, they restore the other Riders and all 30 Kamen Riders defeat the Badan Empire.

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. This is revealed to stem from an optimistic outlook thought to him by his grandfather, who said that all a man needs is a pair of underpants for tomorrow. Eiji possesses no selfish desires which made him ideal for being OOO but also became a weakness once the Purple Core Medals sought out a host, as they immediately found him and took root. However, taking the advice of Akira Date, after becoming a Greeed, Eiji remembers the desire he had so long ago; Eiji wanted the power to protect people no matter where they are, which Ankh gave to him in the form of the OOO Driver.

Super Hero Taihen
OOO appears in the Super Hero Taihen net movie, Super Sentai Murder Mystery! You’re the Great Detective! as one of the suspects for the murders of, , and , as the evidence collected suggests a "Hopper"-themed rider is behind it.

When it is revealed that net movie director was the murder culprit, OOO holds up   and  as one of several Riders and Rangers holding Super Sentai and Kamen Rider merchandise respectively, when the  explain to the Kato that all the Riders love Super Sentai and vice versa.

Kamen Rider Climax Heroes
Kamen Rider OOO appears in the Kamen Rider Climax Heroes game series, beginning with his own installment (Climax Heroes OOO). In his first appearance, OOO only can use the Tatoba, Gatakiriba, Latorartar, and Sagohzo Combos (as well as any Random Combo using combinations of those Medals). In Climax Heroes Fourze, he gains Shauta, Tajadol, and Putotyra, with Burakawani as a special stand-alone character. Climax Heroes Fourze also has an exclusive Purple-Eyes version of Tatoba, representing Eiji going berserk under the influence of the Purple Core Medals; this character does not appear in the sequel, Super Climax Heroes.

All Kamen Rider: Rider Generation 1 & 2
Kamen Rider OOO appears as the main character of All Kamen Rider: Rider Generation, whose plot is loosely inspired by OOO, Den-O, All Riders: Let's Go Kamen Riders. He also appears in the sequel All Kamen Rider: Rider Generation 2, where he and Kamen Rider Double can perform the Double Xtreme/Prominence Drop combination attack from Kamen Rider × Kamen Rider OOO & W Featuring Skull: Movie War Core.

Kamen Rider: Battride War
Kamen Rider OOO appears in Kamen Rider: Battride War, which unites the riders of the Heisei era from Kuuga to Wizard. OOO is the last Rider saved along the second story path, and breaks free of Mnemnosyne after reliving the memory of his final battle with Kiyoto Maki.

In Battride War, OOO has access to all his normal Full Combos after taking amounts of many hits on his enemies until the Full Combos are available to transform, but will automatically transform back into Tatoba after a set period of time (reflecting the danger of over-using Full Combos). Additionally, only Tatoba and Putotyra possess more than one special attack, though the other Combos will use their special powers during their basic combos (for example, Latorartar Combo begins with the Liodias and Tajadol can launch fireballs in mid-air).

OOO's special attacks are:
 * Tatoba Combo: Tora Claw Multi-Slash, OOO Bash, Tatoba Kick
 * Gatakiriba Combo: Gatakiriba Kick
 * Latorartar Combo: Gush Cross
 * Sagohzo Combo: Sagohzo Impact
 * Shauta Combo: Octo Banish
 * Tajadol Combo: Prominence Drop
 * Putotyra Combo: Strain Doom (used after transforming), Tail Divider, Gust, Blasting Freezer

Kamen Rider Batton-Line
to be added

Kamen Rider Travelers Record
to be added

Kamen Rider: Battride War II
Kamen Rider OOO reappeared in Kamen Rider: Battride War II, summoned by Cinema along with the other Neo-Heisei Riders in order to create the "ultimate movie". OOO's stage was based off from Kamen Rider OOO Wonderful: The Shogun and the 21 Core Medals, with Gara as his main enemy. Retained Burakawani from Climax Heroes series, Super Tatoba Combo as an Ultimate Form, most of Tajadol and Putotyra Combos' movesets and mechanics has been revamped.

Devices

 * OOO Driver: Transformation belt
 * O Scanner: A device that scans the medals
 * O Medals
 * Core Medals: Allow OOO to use Combos
 * Cell Medals: Uses for weapons and the Ride Vendor
 * O Medal Holder: A case that holds the O Medals
 * Candroids: OOO can-like support robots

Weapons

 * Medajalibur: Personal weapon
 * Taja Spinner: Tajadol Combo's primary weapon
 * Medagabryu: Putotyra Combo's primary weapon
 * Burahngi: Burakawani Combo's flute

Vehicle

 * Ride Vendor: OOO's Rider Machine
 * Toride Vendor: Latorartar Combo's personal bike

Ranger Keys

 * see also: 

The Kamen Rider OOO Ranger Keys (仮面ライダーOOO (オーズ)レンジャーキー) appeared when Eiji gave his OOO Medals to the Gokaigers, transforming them into these keys. In Super Hero Taisen, these keys changed the Gokaigers into OOO's Full Combos, and were then used to power the GokaiGalleon Buster.
 * Gatakiriba Combo Key (ガタキリバコンボ キー)
 * Latorartar Combo Key (ライトラーターコンボ キー)
 * Sagohzo Combo Key (サゴーゾコンボ キー)
 * Shauta Combo Key (仮面ライダーオーズシャウタコンボ キー)
 * Tajadol Combo Key (タジャドルコンボ キー)
 * Putotyra Combo Key (プトティラコンボ キー)

Gokaiger/OOO 

Appearances

 * Kamen Rider W Forever: A to Z/The Gaia Memories of Fate (cameo and debut)
 * Kamen Rider OOO's episodes
 * Episode 1 - Medals, Underwear, and the Mysterious Arm
 * Episode 2 - Desire, Ice Pops, and Presents
 * Episode 3 - A Cat, Evolution, and a Glutton
 * Episode 4 - Doubt, a Picture Message, and a Helping Hand
 * Episode 5 - The Chase, a Nest, and the Celebrity
 * Episode 6 - Clothes, a Contract, and the Strongest Combo
 * Episode 7 - A Lousy Husband, a Trap, and a Jackpot
 * Episode 8 - Sabotage, Unselfish, and Taking a Break
 * Episode 9 - Soaked, the Past, and the Scorching Combo
 * Episode 10 - The Fist, an Experiment, and a Super Bike
 * Episode 11 - The Traveler, a Swallowtail Butterfly, and a Celebrity
 * Episode 12 - The Eel, the World, and the Gravity Combo
 * Episode 13 - The Siamese Cat, Stress, and the Genius Surgeon
 * Episode 14 - Pride, Surgery, and the Secret
 * Episode 15 - The Medal Struggles, the Transporter, and the Vessel
 * Episode 16 - The End, the Greeed, and the New Rider
 * Episode 17 - The Kendo Girl, Oden, and the Separating Yummy
 * Episode 18 - Destruction, the Reason, and the Eel Whip
 * Episode 19 - The Red Medal, the Detective, and Betrayal
 * Episode 20 - The Decoy, Quantification, and the Flaming Combo
 * Episode 21 - The Grasshopper, Father and Son, and the Ally of Justice
 * Episode 22 - Chocolate, Faith, and the Power of Justice
 * Episode 23 - Beauty, an Egg, and the Sleeping Desire
 * Episode 24 - Memories, Love, and the Marine Combo
 * Episode 25 - The Boxer, the Left Hand, and the Bird Yummy
 * Episode 26 - Ankh, the Ring, and Placing Everything On
 * Episode 27 - 1000, the Movie, and the Combatant
 * Episode 28 - 1000, the Kamen Riders, and the Birthday
 * Episode 29 - The Big Sister, the Doctor, and the Truth about Ankh
 * Episode 30 - The King, the Panda, and the Flames of the Memory
 * Episode 31 - Gratitude, Scheming, and the Purple Medals
 * Episode 32 - The New Greeed, Emptiness, and the Invincible Combo
 * Episode 33 - Friendship, Chaos, and the Left-Behind Belt
 * Episode 34 - The Best Friend, Uses, and Their Relationship
 * Episode 35 - Dreams, the Big Brother, and Birth's Secret
 * Episode 36 - Broken Dreams, a Body, and the Greeed Resurrection
 * Episode 37 - Sleep, One Hundred Million, and Birth's Transfer
 * Episode 38 - Circumstances, Farewell, and a Tearful Birth
 * Episode 39 - Nightmare, Surveillance Cameras, and Ankh's Counterattack
 * Episode 40 - Domination, a Birthday Party, and the Disappearance of Ankh
 * Episode 41 - Siblings, the Rescue, and Eiji Leaves
 * Episode 42 - Ice, Greedification, and Broken Wings
 * Episode 43 - A Vulture, Confrontation, and Ankh Returns
 * Episode 44 - Everyone is Together, Full Resurrection, and Your Greed
 * Episode 45 - Surprise, Proto-Birth, and the Desire of Love
 * Episode 46 - Eiji Greeed, Double Births, and Ankh's Desire
 * Episode 47 - The Red Cracks, Satisfaction, and Eiji's Vessel
 * Episode 48 - Finale: The Medals of Tomorrow, Underwear, and Arms Held
 * Kamen Rider × Kamen Rider OOO & W Featuring Skull: Movie War Core
 * OOO Portion
 * Movie War Core Portion
 * OOO, Den-O, All Riders: Let's Go Kamen Riders
 * OOO, Den-O, All Riders: Let's Go Kamen Riders: ~Let's Look! Only Your 48 Riders~
 * Kamen Rider OOO WONDERFUL: The Shogun and the 21 Core Medals
 * Net Movie: Kamen Rider OOO Allstars: The 21 Leading Actors and Core Medals
 * Kamen Rider OOO Hyper Battle DVD: Quiz, Dance, and Takagarooba!?
 * Kamen Rider × Kamen Rider Fourze & OOO: Movie War Mega Max
 * Beginning: Fight! The Legendary Seven Riders (Cameo)
 * Kamen Rider OOO: Ankh's Resurrection, the Medals of the Future, and the Leading Hope
 * Kamen Rider Fourze: Nadeshiko, Descend (Cameo)
 * Movie War Mega Max: Gather! Warriors of Glory
 * Kamen Rider × Super Sentai: Super Hero Taisen
 * Kamen Rider × Super Sentai: Super Hero Taihen – Who’s the culprit?!
 * Kamen Rider × Kamen Rider Wizard & Fourze: Movie War Ultimatum
 * Movie War Ultimatum Portion
 * Kamen Rider × Super Sentai × Space Sheriff: Super Hero Taisen Z
 * Kamen Rider Wizard TV Specials
 * Special 1 (Episode 52) - The Kamen Rider Rings
 * Special 2 (Episode 53) - Neverending Story
 * Heisei Rider vs. Showa Rider: Kamen Rider Taisen feat. Super Sentai

Portrayal
Eiji Hino is portrayed by Shu Watanabe (渡部 秀), who wrote all of the ending themes of the series.

As Kamen Rider OOO, his suit actor is Seiji Takaiwa (高岩 成二), who has been the suit actor for the majority of leading Heisei Kamen Riders. Aside from OOO, Seiji Takaiwa was also the suit actor for Eiji when he became Kamen Rider Birth in summer movie.

As Eiji Greeed, his suit actor was Yugo Fujii (藤井 祐伍), who is also served as suit actor for Kyoryu Greeed. Yugo Fujii later becomes main suit actor for Kamen Rider OOO in Movie War Ultimatum.

Rider No.
As the leading Rider protagonist of Kamen Rider OOO, Eiji Hino (Kamen Rider OOO) is labeled Kamen Rider #27 (仮面ライダー27号) and Heisei Rider #12 (平成ライダー12号).

Tatoba Combo Ranger Key
The Kamen Rider OOO Tatoba Combo Key (仮面ライダーオーズタトバコンボレンジャーキー) is a Ranger Key based on Kamen Rider OOO's basic Multi Combo. The Kamen Rider OOO Tatoba Key was released in conjunction with the six other OOO Combo Rider Keys which appeared in Super Hero Taisen, while the Tatoba Combo Ranger Key only exists as a toy. Of course as with all Ranger Keys, should it exist, this Key would be able to transform one into Kamen Rider OOO's Tatoba Combo.

In Popular Culture

 * OOO in Tajadol Combo made a cameo appearance in the Cafe Detective Club manga by Fujishiro Takeshi (also creator of Nagasarete Airantou) as a silhouette alongside Ultraman Zero & the Gokaigers.
 * In the Hayate no Gotoku manga, the Tajadol Combo suit was parodied by Sakuya Aizawa, wearing a bird costume with "Tajadol Combo" written in the middle of the costume.
 * In episode 9 of Haiyore! Nyarko-san W has Nyarko make several references to OOO, including her using Eiji's trademark battle cry "Seiya" (セイヤッ) throughout the episode as well as wielding a weapon, similar to the Medajalibur, performing the Tajadol Combo's Prominence Drop, and mimicking Eiji's transformation pose. When the episode's villain is defeated, he shouts out "Sagohzo!", a reference to episode 5, where Nyarko used "Tatoba!" and "Gatakiriba!" as yelps of pain.