was originally an Imagineer video game released in 1997. The game was later adapted into a Japanese anime television series produced by Bee Train. Spanning 52 episodes, the series originally aired on TV Tokyo from July 2, 1999 until June 30, 2000. Medarot Damashii, a thirty-nine episode sequel to the anime series that was produced by Production I.G, aired from July 7, 2000 through March 30, 2001. Both the series and it's sequel are licensed by Nelvana. The Nelvana English dubbed version of Medabots on the Fox Kids network from September 1, 2001 through November 2, 2002 and was one of the channel's highest rated new series' at the time. Medarot Damashii followed a year later, airing from September 13, 2003 until March 7, 2004.
A manga series, written by Horumarin was also produced by the series. It was serialized in the shōnen magazine Comic Bom Bom in Japan and then published into collected volumes by Kodansha. The manga based on the first game Medarot was never translated into English. The manga based on the sequel, Medarot 2, was licensed for an English language release in North America by Viz Media, simply under the title Medabots. Further sequels Medarot 3, Medarot 4, Medarot 5, Medarot G and spin-off manga Medarotter Rintarō and Medarot Navi were never licensed for release in the US. Medarot 2, 3 and 4 have however been translated into English for distribution in Singapore by Chuang Yi.
Several video games have been released for multiple platforms, including Gamecube, Game Boy, and Game Boy Advance.
The series centers around Medabots, artificially intelligent robots, whose purpose is to serve humans. Later in the series, Medabots are found to be actually thousands of years old; remnants of an ancient civilization who called themselves Medalorians. The Medalorians were obsessed with war, and to become more effective warriors they fastened metal armor to themselves. However, their wars decimated the civilization, and the survivors coded their memories onto hexagonial pieces of metal. These, "Medals", cloned and mass produced by the Medabot Corporation (a corporation founded by Dr. Aki), are the Medabot equivalent of a brain and soul. The original medals, referred to as "rare" medals, are kept in storage because of the extreme power they have.
The series begins with a ten year old boy named Ikki Tenrio, who wants to become a champion of the World Robattle Tournament. However, Ikki is unable to afford a Medabot, and his parents refuse to buy him one. However, he manages to get enough money to buy an outdated model, and, with a bit of luck, he finds a medal in a river. Ikki quickly inserts it into the Medabot he purchased, and names him Metabee. The only problem is that the Medal he found gives Metabee a severe attitude problem (a problem rarely seen in a Medabot), which leads Ikki to think he is defective. However, this theory is proven wrong later in the series, as it is revealed that Metabee actually has a "rare" medal.
The rare medals, as mentioned earlier, were kept secret by the Medabot Corporation, as very little was known about them. However, a Medabot with a rare medal would be able to call upon an attack called the "Medaforce". In the manga, the Medaforce is a form of medal mind control, as explained by Dr. Aki in the third graphic novel of Medabots. In the cartoon however, it is shown as a way of increasing the power of the Medabot's special skill.
Another important aspect is the story of Henry, the store clerk who sold Ikki Metabee. We find out that he is, quite obviously, Phantom Renegade. A running joke of series was Henry almost telling everyone he is The Phantom, with no one ever discovering this fact. We are then introduced to Space Medafighter X, who is another one of Henry's secret identities, the number one medafighter in Japan. Later, during the World Finals, he rarely shows up to the fights, instead sending substitutes and working behind the scenes. This being because he supposedly started The Ten Days of Darkness, which occurred eight years before the events in the series during the World Robattle Cup when Henry fought as Hikaru Agata with the original Metabee (however, the medal was different). The Medabots went on a rampage during the Ten Days of Darkness, which stopped when Hikaru Agata was forced to kill his Medabot by destroying his medal.
At the end of the second season, it is revealed that Victor (a medafighter for Team Kenya and Warbandit's owner) was helping Dr. Meta-evil to get medals during the tournament. During the finals, Metabee and Warbandit continue to fight, even with their partners lost and their bodies damaged. It is during this event that Dr. Meta-evil starts his plan using Metabee and Warbandit's medals; trapping them both in a dream. However, Ikki manages to get Metabee to wake up from the dream, while the other medabots, free now, help Metabee to fight against Dr. Meta-evil.
As of 2008, Medarot Damashii is available for purchase on Amazon Video on Demand at $1.99 per episode.
Natsume has released several video games tied to Metabots. Medabots: Metabee Version, released in the United States on Mar 31, 2003, is a Nintendo GameBoy Advance 3D fighting game that features characters from the anime series. Medabots Infinity is another role-playing game for the Nintendo GameCube developed by Victor Interactive. It was released in Japan in November 28, 2003 and in the United States on December 11, 2003.
Medarot Navi, based on the manga and anime, changed the plot of the original series. The story is about Kasumi, a teenage boy who lost his Medabot when he was a child. While visiting his old and abandoned school, Kasumi finds an abandoned medal. Thinking that it could bring his Medabot Metabee back, he places the new medal into his old medabot skeleton. Unfortunately, that new medal gives Metabee a stubborn and aggressive personality. Also, a Medabot named Baketsumaru (an advanced KWG model) and his Medafighter, a teenage girl, are well informed about Metabee's awakening.
In 2007, Shout! Factory announced that they will be releasing the first two seasons of Medabots to Region 1 DVD. The DVDs will contain only the English dubbed version.
Four sequel series followed, all written by Horumarin and published Kodansha. The two volumes of Medabots 3 were released in Japan in December 2000 and April 2001. Medabots 4 followed later in 2001. The first volume of Medabots 5 was released in July 2002, but the second volume was not released until August 2007. Medabots G, a sequel to Metabots 5, was released in 2003.