Yuusha Exkaiser

One snowy night, the Amami couple who has no child encounter a huge white lion-shaped robot, which holds a baby. When they fearfully take that baby, the "lion" suddenly flies away. Though puzzling, Amami couple are happy to accept that baby as their own child. Eight years later, the time is 2005 A.D. Without notice, a Zonder appear at the Tokyo Bay, merging with debris and a passing ship which have kids on its deck, advancing to Shinjyuku - the center of Tokyo. The Japanese Self-Defense Forces' conventional weapon has no effect and some kids are taken hostage. But there is the hero who stands against that Zonder Robot. His name is Guy the Cyborg, the commander of GGG's Mechanized Unit. The GGG ("Gutsy Geoid Guard") are the newly-made Japanese secret defense forces against the extraterrestrial invasion.

Three boys, Takuya, Kazuki, and Dai are from Ishinowa elementary school in the sixth grade. They are actively a strong, curious, mischievous trio. They obtained a mysterious jewel's "Power Stone". They bring back Dran, the golden robot, a brave who slept within a Power Stone and they became his master. However, Prince Walter Walzac, who aims at the Power Stone, has attacked them. They then go to an adventure for searching eight Power Stones that were scattered all over the world. They now aim at El Dorado's Legendra with Goldran.

Earth is the target of the former Sargasso prisoners who took over the prison asteroid and attack our planet.

After stumbling upon a secret laboratory, Yuuta Tomonaga made a habit of sneaking inside after hours to spend time with his new friend: Deckerd, a giant mecha being developed for the Japanese Police. Over the past six months, Yuuta has taught Deckerd concepts which he was never meant to understand; things like joy, anger, sadness, and having a "heart". But now Deckerd is ready for Police service and his reprogramming will in all likelihood obliterate this knowledge...

Senpuuji Maito is a billionaire crime fighting teenager, taking up his father's company and assets at the age of only 15. Taking control of the Might Gaine team of robots that his late father created, Senpuuji and his free thinking robot teams take on the crime lords that plague Neo Tokyo City

Draias, the self-declared ruler of the universe decided to make Earth his base. Together with his ever-loyal subjects Zol and Shura, he carries out his misdeeds through the evil scientist Jango. To stop them, Fighbird and his team follow him to Earth. Fighbird disguises himself as Prof. Amano's assistant, Katori Yutaro, and in doing so, is in for a culture shock as he learns how to live with his human hosts. It's the good, old, cliched battle of good-versus-evil on a mainly human scale as Prof. Amano settles a lifelong grudge match against his former colleague Dr. Jango, while Fighbird squares of with Draias and his men.