Oh Yeah! Cartoons was an American animation showcase that appeared on the Nickelodeon cable channel. Oh Yeah! was an animation project guided by Fred Seibert, former Creative Director of MTV Networks and President of Hanna-Barbera. Produced by Frederator Studios, it ran as part of Nickelodeon's Nicktoons lineup, and in its second season, was hosted by Kenan Thompson of All That and Kenan & Kel fame; Then later by Josh Server, from All That, for its third season. Bill Burnett composed the show's theme music. Oh Yeah! Cartoons was distributed by Nelvana outside of the United States. In terms of sheer volume, Oh Yeah! Cartoons remains TV's biggest animation development program ever. Giving several dozen filmmakers the opportunity to create nearly 100 seven-minute cartoons, the series eventually yielded three dedicated half-hour spin-offs: ⁕The Fairly OddParents ⁕ChalkZone ⁕My Life as a Teenage Robot Nickelodeon's Oh Yeah! half-hour featured in its first season, a total of 39 brand new seven-minute cartoons in 13 episodes, surpassing the number of new cartoons and characters on any other single network. In its full run, Oh Yeah! Cartoons featured and produced over 99 cartoons and 54 characters.

As one of the thousands of Japanese students afflicted with "chunibyo," a state where they're so desperate to stand out that they've convinced themselves that they have secret knowledge and hidden powers, Yuta spent most of his middle school years living in a complete fantasy world. He's finally managing to overcome his delusions but his chunibyo have attracted the attentions of another sufferer, and she's decided that this makes him her soul mate.

It is currently the Taiheimeji era, during the rule of the Tokugawa shogunate. In this era, breasts mean everything. If you have breasts, you are guaranteed wealth and popularity, but if you lack them, you are rarely considered human. Inside the shogunate, there is a group of warriors that support the government—the Manyuu Clan, which helps raise the future big breasts. Written on a secret scroll possessed by the clan, there are said to be various techniques on how to grow big and beautiful breasts. Chifusa is the heir of the clan. However, she takes the secret scroll and runs away with it, hoping to fight against the cruel world that the Manyuu Clan has created…

On a continent ruled by chaos, the Lords have the power of a holy seal that can calm the chaos and protect the people. However, before anyone realizes it, the rulers cast aside their creed of purifying the chaos, and instead start to fight each other for each other's holy seals to gain dominion over one another. Siluca, an isolated mage who scorns the Lords for abandoning their creed, and a wandering knight named Theo, who is on a journey to train to one day liberate his hometown, make an everlasting oath to work together to reform this continent dominated by wars and chaos.

In the future — in a world mostly submerged under water — the 19-year-old Sumeragi Aika goes to college while training as an agent by assisting in Aida Gozo's salvaging business.

Hinata is an introverted high school girl and Mikage is the "gal" who sits next to her in class. Hinata realizes Mikage is her friend from elementary school, and she wants to strike up the friendship again.

Our naïve protagonist proposes to a female character in an online game, only to find out that the player is actually a guy. Traumatized by that, he decides to never trust a girl online, but now, two years later, a female player is proposing to him. What will happen?

A new school term begins, as does the season of new encounters. As he surveys his class full of couples, Hashiba Jun'ichi's mind is filled with distress as he asks himself, "Why am I still a virgin?!" Having heard from his friends that the easiest way to fulfill his long-standing desire to graduate from the fellowship of virgins is to kowtow to a gal, Jun'ichi does exactly that and asks his classmate Yukana out. And unbelievably, she actually agrees to date him. What will become of Jun'ichi from now on?

Staz is a vampire from the surreal "Demon World", and Fuyumi, an ordinary girl, accidentally wanders into the Demon World through a portal. Subsequently after meeting each other, Fuyumi is killed by a carnivorous plant and turned into a ghost, causing Staz to take responsibility and pledge to help bring her back to life.

Toujou Basara is a high school student whose father has suddenly just remarried. His father then departs overseas leaving Basara with two new beautiful step-sisters. Little does he know, his new sisters, Mio and Maria are actually the new Demon Lord and a succubus!? Almost trapped into a life of servitude, Basara forms a reverse contract by accident and ends up becoming Mio's master! Hijinks ensue as Basara finds himself in one ecchi situation after another. However, Mio's life is in danger as she is pursued by demons and heroes!

Yoon Na Na is a well-regarded bartender at XX bar. She takes pride in her work and position as the head bartender. She involves herself in other parts of XX like selecting menu items or setup of the interior. Her dream is to own XX bar. One day, the new owner of XX appears. She is Lee Roo Mi. The two women were best friends 5 years ago, but something happened between them. Yoon Na Na became upset at Lee Roo Mi. Now, Lee Roo Mi tries to make up with Yoon Na Na, but it's not easy.

High-school girl Yuri suddenly finds herself on the rooftop of a high-rise building. She's trapped in a bizarre world surrounded by skyscrapers, where a masked man cracked open a man's head with an axe before her eyes. Finding a way to survive this bizarre world, find her beloved brother, and escape becomes her top priority, but she is beset by danger not just from the mysterious Masks, which possess both inhuman strength and cruelty, but other survivors turned cruel or desparate by the insanity of the high-rise world.

Japan’s post-apocalyptic wasteland replete with dust can only be saved by one thing—fungus. Bisco Akaboshi, a wanted criminal and skilled archer, searches for a legendary mushroom, known as Sabikui, said to devour any and all rust. Joining him on this epic saga to save the country is a giant crab and a young doctor. Can this unlikely trio find the fabled fungi and save the land?

Turns out, evil takes initiative! With world domination close at hand, the Kisaragi Corporation turns its sights on interstellar conquest, and who better to take over a magical world than two randomly assigned minions—Combatant Agent Six and his android partner Alice? But Six’s path up the evil corporate ladder won’t be easy—a Demon Lord’s army is hatching its own nefarious plan!

Miyako is a shy college student who is also an otaku. One day she happens to meet some angelic grade school kids! When Miyako sees her little sister's new friend Hana-chan, Miyako's heart won't stop racing! Miyako tries to get along with them but struggles... A sketch comedy all about trying to get along with the super cute girl is about to begin!

Kiyotaka Ayanokoji has just enrolled at Tokyo Koudo Ikusei Senior High School, where it's said that 100% of students go on to college or find employment. But he ends up in Class 1-D, which is full of all the school's problem children. What's more, every month, the school awards students points with a cash value of 100,000 yen, and the classes employ a laissez-faire policy in which talking, sleeping, and even sabotage are permitted during class. One month later, Ayanokoji, Horikita, and the students of Class D learn the truth of the system in place within their school...

Seton Academy, a school full of animals where, thanks to population decline, there are fewer humans than any other creature. Mazama Jin, an animal hater and the only human male in his class, falls in love with Hino Hitomi, the only female human, the moment he lays eyes her. However he soon finds himself entangled with various other creatures after he reluctantly joins the 'pack' of Lanka the wolf, the only other member of her pack. After getting to know each other, the two decide to create a cooking club, and after a few bad-blooded misunderstandings, Ranka soon joins the club as well. Thus begins the howl-some and howl-arious story of two normal humans; an adorable wolf; a cheerful koala; a sluggish, blonde sloth; and a feline with cattitude in their newfound club—in a story that teaches that friendship can be forged by creatures of different kinds.

At the end of the last summer vacation of high school, Youta Narukami spends his days preparing for the university entrance exams, when a young girl named Hina suddenly appears, proclaiming herself as the "god of omniscience." Youta is confused and does not believe Hina when she tells him "The world will end in 30 days." After witnessing Hina’s God-like predictive ability, Youta begins to believe her powers are real. Hina, who is innocent and childlike despite her supernatural powers, decides for some reason to stay at Youta’s home. Thus begins the start of their lively summer before the end of the world.

At the Death Weapon Meister Academy, three teams must collect the souls of 99 evil humans and one witch.