Hanada Shounen-shi (2002)

It is August 12th. After the remote control to his boarding house's only air conditioning unit is inadvertently destroyed by spilled cola, "I" devises a plan to return to yesterday in a time machine to recover the remote before it breaks. However, his prankster friend Ozu cannot resist playing with past events, even if it means bringing the universe to the brink of destruction. Now "I" finds himself racing through time to avoid disaster.

Jimmy Neutron is the smartest kid in town. As a genius, Jimmy thinks most things can be solved with the invention of a new gizmo. But Jimmy usually takes the easy way out, and his backfiring gadgets result in comedic adventures.

Nina never imagined she would be at the center of a royal deception. She’s had a rough start in life as an orphan in the castle town of Fortna. But when Prince Azure notices that her deep blue eyes look the same as the late Princess Alisha’s, he ordains that she takes her place and marry the Prince of Galgada. Despite this uncertain fate, she finds joy in knowing someone finally needs her.

This cartoon series, characterized by extremely limited animation, features five of the most popular super-powered heroes from Marvel Comics: the Incredible Hulk, the Mighty Thor, Captain America, Iron Man, and the Sub-Mariner.

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.

The story of a young man named Yakumo Fuuji, who through a strange series of events becomes the immortal slave of the last of a race of 3 Eyed immortals. The immortal absorbs his soul to save his life, making him immortal in the process. Now, he begins a journey with the female immortal in an attempt to find a way of becoming human. Of course, there are many complications along the way, not the least of which being that the immortal is a female with a split personality, one achingly cute and the other being no-nonsense destructive power, and the romances that develop between.

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!

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.

Noel is the grandson of legendary Seeker Overdeath and dreams of surpassing his strength. But it turns out that Noel is nothing but a Talker, the weakest class of them all. Undeterred, he uses his silver tongue to gather allies, develop cunning strategies, and form the greatest clan around. Now, as the most notorious Talker, Noel will do whatever it takes to claim supremacy.

The series takes place in Cyberspace, a virtual world, and chronicles the adventures of three children, Jackie, Inez, and Matt, as they use math and problem solving skills to save Cyberspace and its leader, Motherboard, from The Hacker, the villain.