Zatch Bell! (2003)

A mysterious organization is interested in fledging duelist Shobu Kirifuda's ability to bring Duel Master creatures to life. With the support of his friends, Shobu duels with passion, discipline, and heart as he strives to be like his father and become the next Kaijudo master.

Mysteriously transformed into mini versions of themselves, Goku and his friends travel to the Demon Realm to uncover the truth and find a cure.

The fate of the world rests on Ueki, an average junior high student. Average until he gains the power to change trash into trees. Granted to him by the enigmatic Mr K., Ueki’s strange power forces him to participate in the 100-fighter "Battle of Supernatural Powers." If Ueki wins the tournament, Mr. K will become the new King of the Celestial World while Ueki will receive the "Talent of Blank", allowing him to choose any power he desires. However, if Ueki gets too many penalties during the game, he will disappear!

It's the year 2020. The Network has become something humans can no longer do without in their daily lives. But what humans don't know is that on the other side of the Network is the Digital World, a realm of light and darkness. Nor are they aware of the Digimon who live there. Fifth grader Taichi Yagami's mother and little sister Hikari went to Shibuya, and now they're aboard a runaway train. Taichi hurries to Shibuya to save his mother and sister, but the instant he heads toward the station platform... a strange phenomenon befalls the DigiDestined, and Taichi goes to the Digital World!

Asta and Yuno are two orphans who want the same thing: to become the Wizard King. Locked in a friendly rivalry, they work hard towards their goal. While Yuno excels at magic, Asta has a problem uncommon in this world: he has no powers! But, on the day they receive their grimoires, they surprise everyone. To reach their goal, they’ll each find their own path to greatness—with or without magic.

Nanami was just a normal high school girl down on her luck until a stranger’s lips marked her as the new Land God and turned her world upside down. Now, she’s figuring out the duties of a deity with the help of Tomoe, a reformed fox demon who reluctantly becomes her familiar in a contract sealed with a kiss. The new responsibilities—and boys—are a lot to handle, like the crow demon masquerading as a gorgeous pop idol and the adorable snake spirit who’s chosen the newly minted god to be his bride. As the headstrong Tomoe tries to whip her into shape, Nanami finds that love just might have cute, pointed fox ears. With romance in the air, will the human deity be able to prove herself worthy of her new title?

Eiichirō Maruo (nicknamed "Ei-chan" for his grades being straight "A") is an honor student, bookworm, and is not interested in anything other than studying. In order to solve his problem of lacking physical strength, he enrolled a tennis school and soon found the fascinating side of tennis. Being a tennis newbie lacking physical strength, he supplement his shortcomings with his excellent observing and analyzing skills.

Asakura Yoh is a shaman, a person who communicates with ghosts. He enters the Shaman Fight, for whoever wins the tournament gets to commune with the Great Spirit, God... that and his fiance Anna wants to be the wife of the Shaman King. Helping him are his friends Manta, Horo Horo, Ryu, and his samurai ghost partner, Amidamaru.

Determined to protect his demon world from heavenly angels, demon Masatora Akutsu heads to earth in search of a charismatic human to rally his kin. Masquerading as a high schooler for his recruitment mission, he's captivated by the lovely Lily Amane. But he's in for a wild celestial surprise, because she's his archnemesis—an angel—and she's set on reforming his demonic ways!

Nakajima Youko is your average somewhat timid high school student. One day, a strange man named Keiki appears before her, swearing allegiance. Before she could properly register what was happening, demon-like creatures attack Youko and her friends, after which they are pulled into a different world. A world unlike what she has ever known. Separated from Keiki, Youko and her friends must do whatever they can if they wish to survive in this new world.