What are some interesting ideas for a Nicktoons and Cartoon Network crossover fanfiction?

I think Squidward from Nicktoons and Courage the Cowardly Dog from Cartoon Network would be quite unexpected. Squidward is always so grumpy and pessimistic, while Courage is, well, cowardly but also very kind - hearted. Their interactions would be really strange and comical.

One idea could be that all the Nicktoons characters are brought together to fight a new, powerful villain that threatens all of their universes. They have to combine their unique powers and skills to stand a chance.

One idea could be to have the heroes from Cartoon Network shows like Ben 10 and the Powerpuff Girls team up to fight against the forces similar to those in Infinity War. Ben could use his various alien forms to take on different challenges, while the Powerpuff Girls use their superpowers. They could also meet some of the Marvel characters and have some comical yet action - packed interactions.

One idea could be a war between the Powerpuff Girls and the villains from Dexter's Laboratory. Maybe Mandark teams up with Mojo Jojo to create a super - weapon, and the Powerpuff Girls have to use all their strength and wits to stop them. Another idea is a war in the world of Adventure Time, where the Ice King tries to take over all the kingdoms in Ooo with an army of his ice minions. Finn and Jake would then lead a resistance against him.

One interesting concept could be the meeting of different Cartoon Network characters from various shows. For example, the characters from Adventure Time and Regular Show coming together to solve a problem in a shared universe. This allows for unique interactions and the exploration of how different personalities would mesh.

Well, a cool naruto cartoon crossover fanfiction idea might involve Naruto crossing over with the Avengers. Imagine Naruto's ninja skills and the Avengers' superpowers combined to fight a common enemy. Also, a crossover with the world of Fullmetal Alchemist could be interesting. Naruto could learn about alchemy and how it differs from his ninja techniques. And a Naruto and Attack on Titan crossover, where Naruto uses his skills to fight Titans.

A cool concept would be a crossover with 'Avatar: The Last Airbender'. Picture the Total Drama contestants in the four nations. Some might try to learn bending skills, like Duncan thinking he can be a great earthbender because of his tough - guy attitude. They could also get caught up in the Fire Nation's plots or help Aang in his journey to master all four elements. This would bring a whole new level of chaos and humor to both universes.

Some cool Cartoon Network fanfiction might involve Ben 10 in a situation where he loses his Omnitrix but still has to fight aliens using his wits and the knowledge he's gained from using it. There could be a fanfic about Dexter's Laboratory where Dexter teams up with Mandark to fight a common enemy that threatens their entire city. Also, a fanfiction about Courage the Cowardly Dog where he has to save Eustace and Muriel from a time - traveling menace would be really exciting.

Maybe a crossover with a fantasy - themed cartoon. The Mighty Ducks enter a magical world where they have to use their hockey skills in a whole new way. For example, they might play hockey on floating ice rinks in a land of wizards and dragons. They could also team up with the local characters to defeat a common enemy that threatens both their worlds.

One idea could be that all the Nicktoons characters get transported to a strange new world where the rules of their own universes don't apply. They have to work together to find a way back home. Another could be a tournament where characters from different Nicktoons compete, but then they realize there's a greater evil behind the tournament.