Mutant Turtles: Superman Legend (1996)

Set on the distant planet Zi, the story unfolds in a world where biomechanical creatures called Zoids serve as powerful weapons in the long-standing conflict between the Helic Republic and the Guylos Empire. A fragile ceasefire holds, but rising tensions and the return of ancient Zoidian technology threaten to plunge both nations back into war. The story follows Van Flyheight, a young boy who discovers Fiona, a mysterious girl with no memory, and Zeke, an Organoid capable of enhancing a Zoid’s combat abilities. Traveling with the resourceful Moonbay and the reserved mercenary Irvine, the group searches for clues to Fiona’s past. Their journey leads them across the Republic and eventually into the heart of a renewed conflict that will shape the future of Zi.

Year Seven of the Kowa Period, in the former Hokkaido Block, live brothers known as the Nameless Mercenaries. The Emperor, Callis al Britannia, tries to plunge the world into chaos with the help of his servant, Norland, and his Einberg Knights. Rozé and Ash take action from the Northern lands.

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

High school freshman Hiro Amanokawa activates a mysterious device left behind by his father called "Digivice" that makes unknown creatures that cannot be seen by ordinary people, the Digimon, visible to his eyes. This is the story of this other side of the world that nobody is aware of. With their friends, Hiro and Gammamon dive into the mysterious world where these creatures live.

Genki is a boy who loves playing the Monster Rancher games and one day he's somehow transported into the world of the video game where he meets the girl Holly and the monsters Mochi, Suezo, Golem, Tiger and Hare. Together, they are searching for a way to revive the Phoenix, which is the only monster capable of stopping the evil Moo.

Earth kids enter a conflict between two factions of Transformers.

In the near future, humanity has taken its first steps towards journeying into the far reaches of the galaxy. Upon doing so they discover a huge race of insectoid aliens known as "Space Monsters." These aliens seem dedicated to the eradication of mankind as they near closer and closer to discovering Earth. In response, humanity develops giant fighting robots piloted by hand-picked youth from around the world. Shortly after the discovery of the aliens, Noriko Takaya, the daughter of a famous deceased space captain, enters a training school despite her questionable talents as a pilot. There, she meets her polar opposite, the beautiful and talented Kazumi Amano, and is unexpectedly made to work together with her as they attempt to overcome the trauma of war as well as their own emotions.

Fanboy and Chum Chum are fans of all things science fiction and fantasy, and wear wild superhero costumes with their underwear on the outside. Their lives are filled with adventure, from Fanboy's teacher turning into a zombie to an ice monster operating the Frosty Freezy Freeze machine. Their pal Kyle usually tags along on their escapades. Kyle is a real wizard, but Fanboy and Chum Chum are oblivious to his mystical powers, although they live in a world of fantasy.

The story begins when high school student Kazuki Muto is killed one night saving a mysterious girl from a monster, only to wake up in his school dorm, believing it to have been a dream; however, he soon finds out that dream wasn't a dream at all when a giant serpentine monster attacks him and his sister. Tokiko Tsumura, the girl he saved, explains that the monster is a homunculus. Kazuki had been attacked and killed by it when he was rescuing her; however, she, feeling responsible for him, revived him by placing a Kakugane medallion in his chest, serving as a replacement heart.

Monsuno hurtled through space before man existed. Upon burning through the planet's atmosphere and crashing to Earth, they brought chaos and the extinction of the dinosaurs. Over millions of years, the Monsuno essence slowly disappeared as it dropped deeper and deeper below the planet’s surface, until a scientist named Jeredy Suno at the secret government agency found a way to bring them back and control. He took his research and vanished, but not before he left his only son a special gift.