What are some interesting plot ideas for springtrap crossover fanfiction?

A possible plot is that in the fanfiction world, there's a glitch that causes Springtrap and Foxy to swap abilities for a short time. This leads to humorous situations as they try to adapt to their new powers. Also, a plot where Springtrap discovers Foxy has a hidden talent, like painting or singing, and this changes his perception of Foxy completely.

A really unique plot might be that Springtrap and Nightmare are both pawns in a larger game. A mysterious entity is controlling their actions and they start to suspect it. As they try to break free from this control, they learn more about each other's true natures and form an unlikely alliance against the real enemy.

One plot idea could be that Mangle and Springtrap are both trapped in an abandoned part of the pizzeria. They start off as enemies but gradually come to understand each other's loneliness. Another idea is that they are both haunted by their pasts in the pizzeria and they find solace in each other's company while trying to escape the nightmares of the place. Maybe there could be a plot where they team up to protect the new animatronics from a common threat in the pizzeria.

One plot idea could be that Springtrap and Toy Bonnie are forced to team up in the haunted pizzeria. They start off as enemies but gradually discover they have more in common than they thought. For example, they both have a connection to the place's dark past. Another idea is a time - travel plot where they are sent back to a key moment in the pizzeria's history and have to work together to prevent a disaster that would change their fates.

Maybe a crossover with a magical anime. The nanbaka characters could suddenly find themselves in a world full of magic. Some of the nanbaka characters might be really good at using magic in unexpected ways, like Jyugo using his shackles in a magical battle.

A crossover with a modern - day action story could be really cool too. Spartacus and his crew could be brought to the present day through some time - travel mishap. They then have to navigate the modern world, learning about new weapons and technology. They could use their ancient fighting techniques in modern combat situations, like taking on a powerful criminal organization.

Maybe in the fanfiction, the three - tailed beast crosses over into a modern - day human world. People initially fear it, but then they discover that it has a gentle side and is actually trying to find its way back home. It could form a bond with a group of humans who help it on its journey, leading to many adventures along the way.

One idea could be a crossover with 'Fullmetal Alchemist'. Dorohedoro's dark and gritty world combined with the alchemical concepts would be fascinating. For example, the characters from Dorohedoro could be exposed to the laws of equivalent exchange. Another plot could involve a crossover with 'Hunter x Hunter'. The nen abilities in 'Hunter x Hunter' could interact in strange ways with the magic in Dorohedoro's world. Maybe a character from Dorohedoro has to participate in the Hunter Exam. A third idea is a crossover with 'Tokyo Ghoul'. The idea of the ghouls' existence in Dorohedoro's setting and how they would coexist or clash with the existing creatures and characters there.

One idea could be a Vegito crossover with the Dragon Ball GT universe. Vegito could face off against the Shadow Dragons, creating an epic battle of power. Another could be a crossover with the One Piece world, where Vegito has to navigate the Grand Line and deal with pirates. Maybe he teams up with the Straw Hats to take on a common enemy.

One idea could be a crossover with the 'Indiana Jones' series. The Mummy's curse could somehow be related to an ancient artifact that Indiana Jones is after. Maybe they have to team up to stop the mummy from unleashing a greater evil.