A great idea for a Bill Cipher crossover fanfiction would be to cross him over with the world of Over the Garden Wall. Bill could be the ultimate evil in that already spooky world. He might try to prevent Wirt and Greg from finding their way home, or he could be after the Beast's power. Another possibility is a crossover with the Legend of Zelda series. Bill Cipher could be a new and powerful enemy in Hyrule, and Link would have to use his skills and the power of the Triforce to defeat him.
I'm not entirely sure specifically what that fanfiction is about. It could potentially be about Bill Cipher achieving or obtaining Will Cipher in some way, perhaps in a strange or otherworldly scenario within the context of the Gravity Falls universe. It might involve some sort of power play or a very unique plot device that only fans who have read it would know for sure.
Well, it could be a really interesting creative crossover. Bill Cipher from Gravity Falls is this super powerful and chaotic being. In a Naruto fanfic, he could bring a whole new level of chaos to the Naruto universe. Maybe he'd be a new kind of enemy that the ninja have to face, one that doesn't play by the normal rules of chakra and jutsu. It could also be a chance for some really cool character interactions, like how would Naruto react to Bill's mind - games and illusions.
To start writing a Bill Cipher crossover fanfiction, begin by researching both the Bill Cipher lore from Gravity Falls and the other universe you're crossing with. For example, if it's a crossover with My Little Pony. Figure out how Bill's chaotic and often malevolent nature would fit into the colorful and generally positive world of Equestria. Then, create your main characters' roles in this new story. Are they friends, enemies, or something in between? Sketch out a rough plot arc that involves some sort of conflict that only these combined universes can create, like Bill trying to turn Ponyville into his own dark domain.
One great Bill Cipher fanfiction is 'The Cipher's Game'. It has an interesting plot where Bill interacts with the main character in a dream - like world filled with strange and mind - bending challenges. The author does a wonderful job of capturing Bill's chaotic and mischievous nature.
One aspect of Bill Cipher and Dipper fanfiction is the exploration of their complex relationship. Bill is often depicted as a menacing and powerful entity, while Dipper is curious yet cautious. In many fanfictions, Dipper might be lured into Bill's schemes, creating a lot of tension and drama. It's a great way to expand on the personalities and potential interactions that were only hinted at in the original show.
I think Kakashi would also be a great character to pair with Bill Cipher. Kakashi is very intelligent and experienced. His encounter with Bill Cipher would be full of mind - games as he tries to figure out Bill's motives and powers while also protecting the village from Bill's chaos.
Dipper Pines could be one of the main characters. He might be the one who first discovers Bill's transformation and tries to figure out if it's a trick or if Bill is truly changing. His inquisitive nature would make him a great foil to Bill's new human self.
Ford Pines is another likely character. Given his knowledge of the strange and the supernatural, his encounter with Bill Cipher in a crossover could be full of tension and intellectual battles. He might try to outwit Bill using his scientific knowledge combined with his understanding of the occult.
In a 'bill cipher crossover fanfic', the concept of how his powers interact with the new world he crosses into is quite fascinating. His reality - warping abilities might be affected by the different physics or magic systems in the crossover world. It could lead to him having to find new ways to use his powers, or even having his powers weakened or enhanced in unexpected ways.