What could be an interesting plot in a 'Cuphead meets Bendy' fanfiction?

Well, it could be that there is a magical artifact that has the power to change the rules of their respective worlds. Cuphead and Bendy both hear about it from different sources. They both race to get to the artifact first. When they meet, they are both suspicious of each other. However, as they battle it out for the artifact, they realize that there is a third party trying to steal it from them. So they decide to put aside their differences and work together to protect the artifact and keep their worlds safe.

A plot might involve Cuphead getting lost in Bendy's world. Cuphead is used to his own colorful and zany world, but Bendy's world is full of dark alleys and creepy creatures. Bendy could find Cuphead and at first be a bit menacing, but then they start to communicate through gestures. They find out that there is a power - hungry villain who wants to take over both their realms. They form an unlikely alliance and use their unique abilities. Cuphead's acrobatic jumps combined with Bendy's stealth to take on the villain.

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.