Ultraman Gaia: Once Again Gaia (2001)

In Japan, scientifically advanced invaders from the war-destroyed planet Mysteroid cause an entire village to vanish, then send a giant robot out to storm the city by night, after which they request a small patch of land on Earth and the right to marry earthling women, claiming to be pacifists. Mankind must decide whether to capitulate or to resist.

A mysterious extraterrestrial being resembling Godzilla rapidly approaches Earth. The monster, dubbed SpaceGodzilla, lands to challenge the King of the Monsters.

Inventor Goro Ibuki creates a humanoid robot named Jet Jaguar. It is soon seized by an undersea race of people called the Seatopians. Using Jet Jaguar as a guide, the Seatopians send Megalon as vengeance for the nuclear tests that have devastated their society.

The legendary empire of the lost continent of Mu reappears to threaten the world with domination. While countries unite to resist, an isolated World War II Captain has created the greatest warship ever seen, and possibly the surface world's only defense.

In Karakura Town, unidentifiable spirits begin appearing en mases. While attempting to deal with these strange souls, Ichigo Kurosaki and Rukia Kuchiki meet Senna, a mysterious shinigami who wipes out most of them. Senna refuses to answer any questions, so Ichigo is forced to follow her while Rukia tries to find out what's going on.

A young woman from the future forces a local gunman to help her stop an impending alien invasion which will wipe out the human race.

With their most formidable foe vanquished, Inuyasha and his comrades begin returning to their everyday lives. But their peace is fleeting as another adversary emerges: Kaguya, the self-proclaimed princess from the Moon of Legend, hatches a plot to plunge the world into an eternal night of the full moon. Inuyasha, Kagome, Miroku, Sango and Shippou must reunite to confront the new menace.

Mothra and her fairies return to Japan to warn mankind that they must return Kiryu to the sea, for the dead must not be disturbed. However Godzilla has survived to menace Japan leaving Kiryu as the nation's only defense.

Set against the backdrop of a postapocalyptic Earth whose Eastern Hemisphere was destroyed by a massive solar flare, leaving what life remains mutated from radiation and fallout. The story revolves around a group of treasure hunters who extract such objects as the Mona Lisa, the Rosetta Stone and the Crown Jewels while facing rival hunters, mutants and pirates.

A group of cold-blooded killers find themselves trapped on an alien planet to be hunted by extraterrestrial Predators.