Magne Robo Gakeen

Action / Mecha

Mecha

Duke Fleed is a survivor of the Fleed Planet who is escaped to the Earth, onboard a mysterious "spaceship", where is raised by Dr. Umon as his adoptive son, and known as Daisuke Umon. Years after his arrival, he's faced with the threat of King Vega and his army, who want to conquer the Earth. With his friends Koji and Hikaru (and later his younger sister Maria Grace), Duke decides to fight back using his best weapon - the almighty Grendizer.

Action / Mecha

A boy, Tsuwabaki Daiya found a black fire in an ocean when he and his father were in a small boat. A big monster came out of the fire, and the father and the crews were disappeared into the sea. When he was about to become the next victim, a large mecka dragon appeared and saved him. 5 years later since then, Daiya becomes a junior high school student. A big monster reappear, and he meets the mecha dragon,"Daiku Maryu". The head of the dragon separates from the body, and it turns into the body of a super robot, Gaiking. He gets in Gaiking, fights against the monster, and beats it. He learns that there is an enemy that plots to conquer the world, and he leaves for another world, Darius, to stop the plot. (Source: AnimeNfo)

Adventure / Mecha

Earth is under alien attack! Thousands of years ago, the people of the planet Zela uplifted the cultures of Earth with advanced alien science and technology. Now, with Zela itself in danger of being dragged into a black hole, the supercomputer Emperor Darius wants to find salvation for his people... by taking our planet for himself! The only ones who can stop Darius' total conquest are the carrier superweapon Daiku Maryu and its intrepid but eclectic crew: an American navy pilot, a sumo wrestler, a kickboxing champion, and a host of other psychic misfits. The newest addition to the team is a brash baseball player named Sanshiro Tsuwabuki, whose arm was damaged in a Zelan attack, and now seeks revenge at the helm of the giant super robot Gaiking! (Source: Discotek Media)

Action / Drama

There once existed a planet named Beal, until it was wiped out by the mysterious entity known as Gaizok. The few remaining survivors escaped to Earth and split into three families, named Jin, Kamie, and Kamikita respectively. While attempting to start a new life, the collectively known "Jin Family" prepared for the inevitable Gaizok invasion on Earth and its giant mechanical beasts known as "Mecha Boosts". In order to defend their new home, they have built three vehicles which when combined form the mighty Zambot 3. The Jin Family must not only defend against Gaizok attacks, but also harsh criticisms from the very people they protect, who blame the Jin Family for the invasion in the first place. (Source: AniDB)