Gumball and Jotaro would be really interesting. Gumball's energetic and goofy nature would contrast greatly with Jotaro's cool and stoic demeanor. They could learn a lot from each other, like Gumball could teach Jotaro to have a bit more fun, while Jotaro could show Gumball how to be more serious when the situation demands it.
Anais and Koichi would be an interesting combination. Anais is very intelligent and mature for her age in the 'Amazing World of Gumball'. Koichi, on the other hand, is a bit of an underdog in JJBA but has a strong sense of justice. They could team up to solve mysteries that occur when their two worlds collide. Anais could use her smarts to analyze situations, and Koichi could use his stand abilities to get them out of tough spots.
I think Darwin and Polnareff would make a great pair. Darwin is kind - hearted and a bit naive at times, while Polnareff is flamboyant and full of bravado. They could get into all sorts of adventures together. Maybe Darwin would be constantly amazed by Polnareff's stands and fighting skills, and Polnareff would be amused by Darwin's simple yet sincere view of the world.
One possible plot could be that Gumball and his family somehow get transported to the JJBA universe. They might meet the Stardust Crusaders and initially be mistaken for stand users due to their zany and unique abilities. Gumball's shape - shifting ability could be seen as a stand - like power. They could then team up to fight a common enemy, like a new villain that threatens both their worlds.
Definitely Penny. She could bring her unique charm and abilities to the crossover. In a crossover with 'My Little Pony', for instance, she could interact with the ponies in a really interesting way, maybe teaching them about her world while also learning about friendship in Equestria.
Gumball is often a very popular character in fanfics. Since he is the main character of the show, a lot of fanfics revolve around his adventures. Darwin is also quite popular as his sidekick. Their dynamic together is something that many fanfic writers like to play with.
Gumball and Finn from 'Adventure Time' make for an interesting pairing. Finn's heroic and adventurous nature contrasts with Gumball's more comical and sometimes self - centered personality. Another cool pairing is Gumball and Sonic. The speed of Sonic combined with Gumball's unique abilities would lead to some exciting adventures. Also, Gumball and Steven from 'Steven Universe' could be really interesting as they both have a strong sense of family and adventure, but in very different ways.
The Powerpuff Girls would be great characters to include. Blossom, Bubbles, and Buttercup could bring their superpowers to Elmore. They could team up with Gumball to stop a super - villain that's causing chaos in both Townsville and Elmore. Their different personalities would create a lot of fun interactions with Gumball and his friends.
One idea could be a crossover with 'Adventure Time'. Gumball and Finn could go on a wild adventure together, facing challenges in a mixed - up world of both shows. Maybe they have to find a magical item that got lost between their universes.
Kakyoin and Loki Warframe would make a fascinating pair. Kakyoin is very intelligent and strategic with his Hierophant Green stand. Loki, on the other hand, is all about stealth and deception. They could combine their skills to infiltrate enemy bases in the crossover. Kakyoin could use Hierophant Green to scout ahead while Loki keeps them hidden from detection.
Spiderman and Batman would be really interesting. They are both intelligent and resourceful. Batman has his gadgets and detective skills, while Spiderman has his super - strength and web - slinging. They could learn a lot from each other.
Wonder Woman is another great choice. Her strong moral code and powerful abilities would be an interesting counterpoint to Deadpool. He might be in awe of her at first, and then start trying to crack jokes and get on her nerves, but they could also form an unlikely friendship as they fight together against a common enemy.
Since it's a fanfic based on 'The Amazing World of Gumball', there might be some new and unique characters added to the mix. For example, there could be a character who is constantly in search of the perfect bathroom experience and drags the other characters along on their quest. Or there could be a villain whose evil plan involves messing with the town's plumbing system, creating all sorts of potty - related chaos for the Gumball characters to deal with.