What are some interesting ideas for a Cuphead crossover fanfiction?

One idea could be that the characters from Cuphead end up in the world of Batim. Cuphead and Mugman might be mistaken for new ink creations in the studio. They could then have to deal with the strange and often menacing creatures in the Batim world while trying to find a way back to their own.

One idea could be exploring Cuphead and Mugman's childhood. Maybe they had a special adventure before the events of the game. Another idea is to create a fanfiction where they meet new characters in a different part of the Inkwell Isles that has a unique theme, like an underwater world. A third idea could be a story where Cuphead has to face his fears without Mugman by his side for a change.

Another interesting concept is an OC that is a traveling musician in Inkwell Isles. This OC could meet Cuphead and Mugman during their travels and join them on their quests. They could use their music to soothe enemies or even as a form of attack, like creating sonic waves that stun bosses. It would add a unique element to the existing Cuphead world.

One plot idea could be that Cuphead and Baroness have to team up against a greater evil in the Cuphead world. Maybe a new powerful devil - like character shows up and they realize they need each other's skills to defeat it.

One plot idea could be Djimmi and Beppi teaming up against Cuphead. They might create a series of wacky challenges in their own magical and carnival - themed worlds respectively, and Cuphead has to go through them to get a special item. Another idea is a story where Djimmi and Beppi start as rivals, each trying to outdo the other in terms of magic tricks or carnival attractions, but then they realize they can be more powerful together.

Perhaps Bendy and Cuphead are forced into a competition by a mysterious villain. They start off as rivals but gradually realize that they need to work together to defeat this common foe. This could involve them using their unique abilities, Bendy's flexibility and Cuphead's shooting skills, in creative ways.

Perhaps a 'Cuphead baby fanfic' could explore the origin of Cuphead as a baby. Was he born with his powers? Or did he acquire them in a special event when he was a baby? The fanfic could also show baby Cuphead's relationship with the Devil in a more comical and innocent way, like the Devil being both annoyed and amused by this tiny, fearless baby.

Maybe in the fanfiction, there's a powerful villain who has stolen an important item from both Bendy's world and Cuphead's world. Bendy and Cuphead meet by chance and realize they have a common enemy. They start their journey together. Cuphead teaches Bendy some of his acrobatic moves, and Bendy shows Cuphead how to use the environment to his advantage with his ink.

One plot idea could be King Dice getting into a tricky situation where he has to choose between loyalty to the Devil and his own sense of right and wrong. Maybe he discovers a plan of the Devil's that he doesn't agree with, like a scheme to cheat more souls out of the Inkwell Isles' inhabitants in a really unfair way. Another idea is a backstory for King Dice that shows how he became so close to the Devil in the first place. It could involve his own ambitions and how the Devil promised to fulfill them. A third plot could be about a character from the Cuphead world trying to save King Dice from the Devil's influence, leading to a series of challenges and adventures.

Well, perhaps there could be a plot where a mysterious villain is causing chaos in both of their worlds. Cuphead and Bendy meet and initially don't trust each other, but as they learn more about the villain's plan, they realize they need to work together. They could start to teach each other about their own unique skills and cultures along the way, like Cuphead showing Bendy how to use his shooting skills better and Bendy teaching Cuphead some sneaky tricks he learned in his spooky world.