O Medals

The O Medals (オーメダル, Ō Medaru) are special medals that are the center of Kamen Rider OOO's different powers based on the animal the Medal represents. There are two different O Medals: Core and Cell. In Kamen Rider Battle: Ganbaride, toy version of the O Medals, both Core and Cell, can be used with the OOO style Ganbaride arcade machines to either change combos or initiate attacks. Some are also exclusive to the game such as the Rider Medals that allow Kamen Rider OOO to transform into the Kamen Riders based on those Medals and perform their finisher attacks.

Core Medal
Core Medals (コアメダル, Koa Medaru) are colored O Medals used to transform into Kamen Rider OOO or any Combo which are acquired from a Greeed. These five types of Core Medals were originally fifty created by human scientists 800 years ago as a means to create artificial life, drawing from characteristics of different animals, forming the core of the Greeed before one Medal in each set was destroyed. However, as revealed by Maki, they made a sixth set of Core Medals: the Purple Cores, which were formed from the antithesis of desire and had the potential to shatter Core Medals with ease. Five of these Medals entered Eiji's body when they sense his lack of desire, having a profound effect on him by allowing him to sense a Yummy and appearing on the OOO Driver on their whim, but they also entered Dr. Maki due to his wish for the end of the world.

Each set of Core Medals comes in a specific color and animal type. Red Core Medals have bird powers; yellow Core Medals have big cat powers; green Core Medals have insect powers; silver Core Medals have heavy mammal powers; blue Core Medals have marine animal powers; purple Core Medals have dinosaur powers; and orange Core Medals have reptilian powers. There are 70 Core Medals total from the series, each three from a Greeed divided in three groupings: Head, Arms, and Legs.

In the series finale, only 53 Core Medals that remained after Eiji and Maki permanently killed several of the Greeed, but all Core Medals except for one Core are seemingly destroyed when Eiji as able to defeat the Kyoryu Greeed, the Greeed absorbing all but one of the Core Medals, along with the Medal Vessel, in a black hole-like collapse of the Purple Core Medals' power, the Purple Cores shattering as they approached the event horizon, disappearing forever. That one Core Medal that was left is the split-in-two Taka Medal which formally contained Ankh's consciousness, Eiji now carrying it with him on his journey while find a way to fix the medal and revive him. However, in the Kamen Rider x Kamen Rider Fourze &amp; OOO Movie War Megamax, all desire-based types of Core Medals are reappeared again, along with Ankh.

There were also the King's Core Medals (王が持っていたコアメダル, Ō ga Tsukatteita Koa Medaru), which were originally part of the Core Medal sets that composed Ankh, Kazari, and Uva. Being the only tenth Core Medals separated from the rest of their respective sets instead of being destroyed, the King used them to become Kamen Rider OOO eight centuries ago. They were originally in Kougami's possession until he gives them to Eiji to become the true Kamen Rider OOO. These special Cores were first mentioned in a Foundation X report during the antepenultimate episode of Kamen Rider W, referred to as the King Medal (at the time, it was believed there was only one King Core) which are said to have more power than even the True Gaia Memory. However, prior to the final battle, the King's Core Medals are shattered due to the power of the purple Core Medals and the massive amount of Cell Medals in Eiji's body.

In the toy Scanner, there were unused sounds for certain animals, most likely Core Medal ideas that were left in the Scanner. However, they were later referenced in Movie War Megamax as Core Medals in the process to be developed by the future Kougami after he made Poseidon's Cores. They were the Ushi (Bull), Shirokuma (Polar bear), Hachi (Bee), Mukade (Centipede), Ari (Ant), Shika (Deer), Gazelle, Yadokari (Hermit crab), Penguin, and Seiuchi(Walrus) Core Medals.

Head:

 * Taka Medal (タカメダル, Taka Medaru): The Taka Medal is the Hawk-themed O Medal given to OOO by Ankh. As a Head Core Medal, it allows OOO to use the Taka Head, greatly improving his senses and improve his accuracy. It also enables him to see inside Greeed or Yummy, such as pinpointing the location of a specific Core Medal within a Greeed's body, which was shown when he used the Taka Medal to find the Shachi Medal in Kazari's body. In the Tajadol Combo, the Taka Head becomes the Taka Head Brave. It was the first Core Medal to be seen in the series and was one of four initital Core Medals OOO could utilize. After Ankh's sacrifice, only one copy remained before it broke into two halves while the last intact copy was sucked into a black hole. Following the loss of all the other Core Medals to the black hole, this is the only Core Medal to still exist in some form in present day, the broken halves taken by Eiji on his travels.
 * Kuwagata Medal (クワガタメダル, Kuwagata Medaru): The Kuwagata Medal is the Stag Beetle-themed O Medal. As a Head Core Medal, it allows OOO to use the Kuwagata Head, allowing him to create lightning from the Kuwagata Horns normally and, when using the Gatakiriba Combo, it allows the power of duplication, an effect known as the Branch Shade. After Uva's demise, all three of them are sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Lion Medal (ライオンメダル, Raion Medaru): The Lion Medal is the Lion-themed O Medal. As a Head Core Medal, it allows OOO to use the Lion Head, which allows OOO to release intense light normally and intense heat when using the Latorartar Combo, an effect known as Liodias. After the death of Kazari, only two of them remained before being sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Sai Medal (サイメダル, Sai Medaru): The Sai Medal is the Rhinoceros-themed O Medal. As a Head Core Medal, it allows OOO to use the Sai Head, allowing him to have a hard and strong head, perfect for headbutts and can manipulate gravity when using the Sagohzo Combo. After the death of Gamel, only two of them remain before being sucked the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Shachi Medal (シャチメダル, Shachi Medaru): The Shachi Medal is the Killer Whale-themed O Medal. As a Head Core Medal, normally, it allows him to receive and emit sonic waves, shoot out streams of water and dive underwater for up to 3 hours; whereas it is also able to turn his body into a liquid-like state in the Shauta Combo. After the death of Mezool, only two of them remained before being sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Ptera Medal (プテラメダル, Putera Medaru): The Ptera Medal is the Pteradactyl-themed O Medal. As a Head Core Medal, it allowed him to use the External Fins to fly in Putotyra Combo along with creating freezing winds that encase the opponent in ice. It also allows OOO to fly. Due to the Purple Cores being made to get rid of desire, the Ptera Medal cannot be used to form a Random Combo. After the death of the Kyouryu Greeed, all four of them were shattered when they were sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Cobra Medal (コブラメダル, Kobura Medaru): The Cobra Medal is the Cobra-themed O Medal. As a Head Core Medal, it allows his eyesight to be doubled, as well as gaining infra-red perception and can even see in absolute darkness. In the Burakawani Combo, the Cobra Medal gives OOO the ability to make any flute become the Burahngi, as so it'll make the ponytail on the back of the Cobra Head to transform into a pale-orange scaled and purple-eyed cobra and attack according to OOO's mental demands. The Cobra Medal only appears in The Shogun and the 21 Core Medals.

Arms:

 * Tora Medal (トラメダル, Tora Medaru): The Tora Medal is the Tiger-themed O Medal given to OOO by Ankh. As a Arms Core Medal it allows OOO to use his Tora Claw gauntlets as weapons. It was one of four initital Core Medals OOO could utilize. After the death of Kazari, all three of them were remained before being sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Kamakiri Medal (カマキリメダル, Kamakiri Medaru): The Kamakiri Medal is the Praying Mantis-themed O Medal. As an Arms Core Medal, it arms OOO with the Kamakiri Sword gauntlets as weapons. It was one of four initital Core Medals OOO could utilize. After Uva's demise, all three of them are sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Unagi Medal (ウナギメダル, Unagi Medaru): The Unagi Medal is the Electric Eel-themed O Medal. It allows OOO to use the Unagi Arms' weapons, the Unagi Whips, which shocks the target upon contact. Leaving the Unagi Whips in the Unagi Shoulders will charge the whips. After the death of Mezool, only two of them had remained before being sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Gorilla Medal (ゴリラメダル, Gorira Medaru): The Gorilla Medal is the Gorilla-themed O Medal. As an Arms Core Medal it allows OOO to fire his Gori Bagon gauntlets at an opponent like missiles. After the death of Gamel, only two of them remained before being sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Kujaku Medal (クジャクメダル, Kujaku Medaru): The Kujaku Medal is the Peacock-themed O Medal. Until episode 20, Kazari took it for himself until Ankh stole it from him after making a diversion. It allows Kamen Rider OOO to use the Kujaku Arms, arming him with the Taja Spinner and the ability to fly when in the Tajadol Combo. Ankh finds another copy of this Medal during the events of Movie War Core. After Ankh's sacrifice, the remaining two copies are sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Torikera Medal (トリケラメダル, Torikera Medaru): The Torikera Medal is the Triceratops-themed O Medal. As an Arms Core Medal, it allows OOO to use the Wind Stinger horns that are mounted on the Torikera Shoulders, which can stretch into various lengths according to OOO's command. Due to the Purple Cores being made to get rid of desire, the Torikera Medal cannot be used to form a Random Combo. After the death of the Kyouryu Greeed, all three of them were shattered when they were sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Imagin Medal (イマジンメダル, Imajin Medaru): The Imagin Medal is the Momotaros-themed Core Medal, appearing in Let's Go Kamen Riders, created from Momotaros' body, which arms OOO with the large Orenotsuno (オレノツノ, lit. "My Horns") Shoulders which can be used as a powerful weapon; however Momotaros only believes that they are a decoration to let Kamen Rider OOO fight "in style". The Imagin Medal only appears in Let's Go Kamen Riders as the Imagin Medal alongside the Shocker Medal dissolve at the end of the film, after the timeline was restored.
 * Kame Medal (カメメダル, Kame Medaru): The Kame Medal is the Turtle-themed Core Medal that arms Kamen Rider OOO's arms with two carapace-like shields called "Goura Guardner", shaped like a turtle shell split in half, with each half resting on each arm. When he puts them together, he can use a energy shield. The Kame Medal only appears in The Shogun and the 21 Core Medals.

Legs:

 * Batta Medal (バッタメダル, Batta Medaru): The Batta Medal is the Grasshopper-themed O Medal given to Kamen Rider OOO by Ankh. As a Core Medal, it allows OOO to use the Batta Legs to jump and kick with great strength. When used in Scanning Charge or when energy is pushed into the legs, the legs become more grasshopper-like, allowing OOO to jump high in the air to perform a Rider Kick or to reach higher places. It was one of four initital Core Medals OOO could utilize, and once belonged to Uva. After Uva's demise, all three of them are sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Cheetah Medal (チーターメダル, Chītā Medaru): The Cheetah Medal is the Cheetah-themed O Medal. As a Core Medal it allows OOO to use the Cheetah Legs to move at blurring speeds and use rapid-fast kick attacks. After the death of Kazari, all three of them remained before sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Tako Medal (タコメダル, Tako Medaru): The Tako Medal is the Octopus-themed O Medal that allows OOO to use the Tako Legs, which can use suckers on his feet to attach to floors, walls, and ceilings, as well as being able to split up into eight legs that can trap a target, barrage a target with kicks or become a drill when used in Scanning Charge. After the death of Mezool, only two of them remained before being sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Zou Medal (ゾウメダル, Zō Medaru): The Zou Medal is the Elephant-themed O Medal. As a Core Medal it allows OOO to use the Zou Legs to cause minor earthquakes with a mere step of his foot. After the death of Gamel, all three of them remained before sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Condol Medal (コンドルメダル, Kondoru Medaru): The Condol Medal is the Condor-themed O Medal. It allows Kamen Rider OOO to use the Condol Legs, allowing him to use talon-like attachments to enhance his kicks. Ankh found one during the events of Movie War Core. In the series, it was revealed that Kougami has a copy of this Medal, and intended to give to Eiji, but he declined so Ankh wouldn't leave Shingo's body to die but was later used during the fight with the Lion-Kurage Yummy. After Ankh's sacrifice, the remaining two copies are sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Tyranno Medal (ティラノメダル, Tirano Medaru): The Tyranno Medal is the Tyrannosaurus Rex-themed O Medal. As a Leg Core Medal, it allows OOO to use the Tyranno Legs, which can use a tail to give a devastating blow by the use of the thigh armor and use the Legsteranail claws on the feet to attack enemies with kicks. Due to the Purple Cores being made to get rid of desire, the Tyranno Medal cannot be used to form a Random Combo. After the death of the Kyouryu Greeed, all three of them were shattered when they were sucked into the black hole that was caused by the destruction of the Kyoryu Greeed.
 * Shocker Medal (ショッカーメダル, Shokkā Medaru): The Shocker Medal is a Core Medal appearing exclusively in Let's Go Kamen Riders. It was discovered and modified by Shocker for the Shocker Greeed, which bears it's Eagle insignia. It allows OOO to use the Shocker Legs, which are very similar to the Condol Legs. The Shocker Medal only appears in Let's Go Kamen Riders as the Shocker Medal alongside the Imagin Medal dissolve at the end of the film when the timeline was fixed.
 * Wani Medal (ワニメダル, Wani Medaru): The Wani Medal is the Crocodile-themed O Medal. As a Leg Core Medal, it allows OOO to use the Wani Legs, allowing him to use the sharp saw-like attachments known as the Saw Deadscythers to cut through enemies while his kicks project a crocodile head "biting" the opponent on contact. The Wani Medal only appears in The Shogun and the 21 Core Medals.

Other:

 * Panda Medal (パンダメダル, Panda Medaru): The Panda Medal is a white Core Medal themed after a Giant Panda that is given out with the March 2011 Televi-kun magazine. In Kamen Rider Battle: Ganbaride, it arms Kamen Rider OOO with the Panda Arms, arming him with gauntlets similar to the Tora Claws, essentially making it a white pallete swap of the Tora Claws.
 * Kangaroo Medal (カンガルーメダル, Kangarū Medaru): The brown Kangaroo Medal was given out with the August 2011 issue of Televi-Kun magazine to go along with the Kamen Rider OOO Hyper Battle DVD. Unlike other Core Medals, the Kangaroo Medal can be used as either an Arm Medal where it arms Kamen Rider OOO with boxing gloves, as in the Combo Takagaruba (タカガルバ), or as a Leg Medal where it gives Kamen Rider OOO spring-loaded jumps and kicks while adorning him with what looks like sneakers, as in the Combo Takatoragaru (タカトラガル). However, the Kangaroo Medal are disappeared after the fight against the second Bison and Shachi-Panda Yummy.
 * Sasori Medal (サソリメダル, Sasori Medaru), Kani Medal (カニメダル, Kani Medaru), Ebi Medal (エビメダル, Ebi Medaru): The black Sasori, Kani, and Ebi Medals appear during the events of Kamen Rider x Kamen Rider OOO & W Featuring Skull: Movie War Core as the items that transform Nobunaga into the Armored Warrior Inhumanoid and are later used to power Kamen Rider Core before Kamen Rider Core were destroyed alongside three black Core Medals and Memory Memory by Kamen Rider OOO TajadolCombo and Kamen Rider W CycloneJoker Gold Xtreme. While the toy Core Medals are compatible with the DX OOO Driver, they do not have a special Combo announcement.
 * X Medal (Xメダル, Ekkusu Medaru), Amazon Medal (アマゾンメダル, Amazon Medaru), Stronger Medal (ストロンガーメダル, Sutorongā Medaru): Core Medals representing three of the seven sealed Kamen Riders which appear during the events of Kamen Rider x Kamen Rider Fourze & OOO Movie War Megamax that, along with the #1, #2, V3, and Riderman Astro Switches, are in Foundation X's posession. These Medals are based on the Rider Medals which used to be compatible with the Kamen Rider Battle: Ganbaride arcade game.

Cell Medals
Cell Medals (セルメダル, Seru Medaru) also come from the Greeed, but also make up the bodies of the Yummy. These Medals are a manifestation of human desire. While the Greeed were sealed away, the Kougami Foundation studied and gathered the Cell Medals, incorporating them in their Ride Vendor, Medajalibur, and Candroid technology. Whereas Core Medals can be used and reused without effect done on the Medals, Cell Medals only have a limited amount of energy and vanishing when the energy has been depleted.

Super Core Medals
Super Core Medals (スーパーコアメダル, Sūpā Koa Medaru) are enhanced Core Medals created from technology 40 years in future in Movie War Megamax, enabling Kamen Rider OOO to evolve his combo. They are similar in design to the Core Medals; but in addition to the gold edges, they also feature a gold design of the animal they represent. Only three Medals of Super Medals have been revealed in the movie. Michal Minato has obtained three Super Core Medals from the future and give Eiji the Super Core Medals from the future before going back to his time to protect it after realizing what it means to be a Kamen Rider.
 * Super Taka Medal (スーパータカメダル, Sūpā Taka Medaru): The Super Taka Medal arms Kamen Rider OOO with the Super Taka Head (スーパータカヘッド) Sūpā Taka Heddo), which looks similar to the Taka Head Brave in the Tajadol Combo.
 * Super Tora Medal (スーパートラメダル, Sūpā Tora Medaru): The Super Tora Medal arms Kamen Rider OOO with the Super Tora Arms (スーパートラアーム, Sūpā Tora Āmu), arming him with the the more longer and sharper Tora Claw Solid (トラクローソリッド, Tora Kurō Soriddo) gauntlets.
 * Super Batta Medal (スーパーバッタメダル, Sūpā Batta Medaru): The Super Batta Medal arms Kamen Rider OOO with the spiked Super Batta Legs (スーパーバッタレッグ, Sūpā Batta Reggu), allowing him to jump higher and kick with extra strength.