Gunbuster (1988)

Ensign Shiro Amada is transferred to Southeast Asia to take command of the 08th MS Team. In their first guerilla operation, Shiro's team is tasked with distracting the Zeon forces while Federation ground troops locate a mysterious new Zeon weapon.

In 1972, the Apollo 17 mission discovered a hypergate to Mars on the surface of the moon. Soon a war breaks out between Earth and Mars, and Martian soldiers begin to descend from the sky, riding steel giants, intent on exterminating humanity.

When Shibuya time-warps to 2388, high schooler Daisuke and his friends are conscripted by AHRV agent Milo to fight the hostile cyborg race, revisions.

Cosmic Era 71. Mankind has developed into two subspecies: Naturals, who reside on Earth, and Coordinators, genetically enhanced humans capable of withstanding the rigors of space who inhabit orbital colonies known as PLANTs. The story revolves around a young Coordinator named Kira Yamato, who becomes involved in the war between the two races after a neutral space colony secretly developing mobile suits for the Earth Alliance is attacked by the PLANTs' military force, ZAFT.

After Colony (A.C.) 195. Mankind has moved into space. Thousands of people live on giant orbiting space colonies called "Sides." However, the Earth Government, which rules the colonies, is unjust and cruel. A group of revolutionaries builds five robotic weapons called Gundams and plans to send them to Earth to begin their fight for independence. Piloted by five young men, these Gundams carry the hopes and dreams of freedom of the colonists with them as they descend to Earth to begin Operation Meteor!

An alien race called Gauna has destroyed Earth. leaving humanity struggling to survive aboard the spaceship Sidonia. Even though it’s been a century since the last encounter with the Gauna, military service is mandatory. For Nagate Tanikaze, whose grandfather secretly hid him in the forgotten bowels of Sidonia, it’s a strange new world as he’s forced to come to the surface. Yet his recruitment comes just in time, for the Gauna have suddenly reappeared.

Universal Century 0087, 7 years have passed since the end of the One Year War between the Earth Federation and the Principality of Zeon. The Earth Federation has created an elite task force, known as the Titans, who are responsible for hunting the remaining Zeon forces. However, the power-hungry Titans have spurred the creation of a rebellious faction called the Anti-Earth Union Group (AEUG).

A warrior from a post-apocalyptic future travels to 1997 to protect an AI scientist being hunted by an unfeeling — and indestructible — cyborg.

The year is Universal Century 0088. Directly after the end of the Gryps War, Haman Karn and her army of Zeon remnants on the asteroid Axis begin their quest of reviving the lost empire of the Zabi's, and proclaim themselves as the Neo-Zeon. With the Earth Federation as hapless as ever, only the Anti-Earth Union Group (AEUG) is able oppose the plans of Neo-Zeon. In need of all the help it can get after being decimated in the previous war and losing many of its key members, the AEUG ship Argama enlists the aid of a young junk collector from the Side 1 colony of Shangri-La named Judau Ashta to pilot its newest mobile suit, the ZZ Gundam.

After Koji Kabuto and Sayaka Yumi leave to the USA, it's up to the rash orphan Tetsuya Tsurugi to pilot the next Mazinger robot: the Great Mazinger. Under the direction of Dr. Kenzo Kabuto and helped by his adoptive sister Jun Honou, Tetsuya battles the Miccene Empire.