Who would be the main antagonist in a 'Cuphead meets Bendy' fanfiction?

A corrupted version of one of their own friends could be the main antagonist. For example, a possessed Boris from Bendy's world or a mind - controlled Mugman from Cuphead's world. This would add an emotional layer as they have to fight someone they care about.

It could be a jealous artist named Max. Max has always been overshadowed by Bendy and Betsy's talent. So, he devises a plan to steal their ideas and take over the art world in their story. He starts spreading rumors about Bendy and Betsy to turn other artists against them.

One common theme could be conflict. Since Cuphead is evil in this, there would likely be a fight between him and Bendy over territory or power.

Yes, there are some. You can check out fanfiction platforms like Archive of Our Own. There might be various interpretations of this crossover, some focusing on their battles, others on how they could form an unlikely alliance.

One possible plot could be that Cuphead and Bendy accidentally cross paths in a strange, in - between dimension. Cuphead, being his adventurous self, is intrigued by Bendy's spooky appearance. They initially have a bit of a stand - off as they don't understand each other's motives. But then they realize they both have a common enemy, some sort of dark force that is threatening both their worlds. So they team up, with Cuphead using his shooting skills and Bendy using his ability to disappear into the shadows to fight this new threat.

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.

Maybe there's a new character, a mad scientist who has been observing both the Sonic and Bendy universes. He creates a device that can merge the two worlds in a chaotic way, causing disasters in both. He believes that by doing this, he can become the ruler of the combined universe. Bendy and Sonic must stop him before the two worlds are completely destroyed.

The Devil from Cuphead could be really interesting. Imagine him showing up in Bendy's world. His menacing presence and powers would be a huge threat. Bendy and his friends would have to figure out how to deal with this new and powerful foe. And the Devil could also be interested in Bendy's world for some dark purpose, like trying to corrupt it further.

Maybe a rogue ninja who has somehow tapped into dark powers related to Kami's domain. This ninja wants to use these powers to take over the ninja world, and Naruto, with Kami's help, has to stop him. In this fanfiction, the rogue ninja could have some personal vendetta against Kami as well, which adds more depth to the story.

There's a possibility that an evil scientist from another planet could be the main antagonist. This scientist wants to use Bulma's knowledge and Cell's power for his own evil experiments. So he tries to break up their partnership and capture them both for his own purposes. He sends his minions after them and creates various obstacles for Cell and Bulma to overcome.