RahXephon (2002)

This sweeping science-fiction saga delves into the rich “Halo” universe with seven exciting stories (told in eight parts) focused on Master Chief’s mysterious origins, the Spartans’ advanced combat capabilities, and the tense rivalry between Spartans and Orbital Drop Shock Troopers (ODSTs).

Fifty years in the future, an oppressive authoritarian force threatens to conquer the world. A daring team is recruited to pilot a new form of weaponized neuroscience that powers devastating mecha, but they must be willing to sacrifice everything to save the world.

The story revolves around Duke Fleed who is a survivor of the Vega Star, raised by Dr. Umon as his adoptive son, and known as Daisuke Umon on Earth. 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 kid sister Maria Grace), Duke decides to fight back using his best weapon, the almighty Grendizer.

Haruto Tokishima, a high school student, discovers Valvrave, a mysterious and very powerful machine, and after controlling it Haruto becomes immortal.

The year is 2242. Kanata wants to be a Drifter and meets Noir, who is a dud Magus with no memories. However, because Noir excels in battle against the Enders, Kanata partners with her and discovers exactly what it takes to be a Drifter.

Hiroshi Shiba is a car racer who is mortally wounded in a laboratory accident, but restored to life by his father, Professor Shiba.

Set in the future, a giant fighting machine called the Aquarion is humanity's only effective weapon in the fight against the technologically advanced species called the Shadow Angels.

In a world where humans coexist with androids called Neans, a group known as the Immortal Nine rises up against society. Tasked with disposing of the revolters, a Nean named Rouge Redstar (aka Metal Rouge) and investigator Naomi Orthmann head to Mars to track them down…but first, Rouge wants some chocolate.

While pursuing fugitives the Space Federation police officer Birdy Cephon Altera finds herself on Earth.

Ban Mido and Ginji Amano run a freelance business of recovering anything lost or stolen. They call themselves the GetBackers, and they're a super powered duo.