What could be an interesting plot in a Naruto Ghost Rider crossover fanfiction?

Another idea is that there's a curse in the Naruto world that has some similarities to what made Ghost Rider who he is. So, Ghost Rider comes to help Naruto understand and deal with this curse. They could go on a journey together, facing challenges along the way, and in the process, Naruto might learn some new techniques inspired by Ghost Rider's abilities.

One idea could be that the lycans and vampires in the Underworld are being haunted by some strange demonic presence. The Ghost Rider, sensing this unholy chaos, rides into their world. He could initially be seen as a threat by both sides but then they realize he's there to fight a common enemy, like a powerful demon that wants to use the eternal war between the lycans and vampires to its advantage. The Ghost Rider's hellfire powers could be a new and terrifying element in the Underworld's dark and violent setting.

One possibility could be that the Ghost Rider somehow ends up in the wizarding world. Maybe he's chasing a demon that has escaped into Hogwarts. The students and professors would be both terrified and intrigued by his flaming skull and his powers. Harry Potter might team up with him to defeat the demon and learn some new, dark forms of magic in the process.

In a Ghost Rider - Avengers crossover fanfiction, the story could start with Ghost Rider being drawn into the Avengers' world due to some strange rifts in the dimensions. The Avengers, being the protectors of the Earth, are a bit skeptical of this new, flaming - skulled hero. However, as they face a powerful interdimensional foe that can only be hurt by Ghost Rider's hellfire, they have to team up. Ghost Rider's unique abilities like his superhuman strength and his ability to track down evil could be crucial in the fight. Also, his relationship with the supernatural could open up new storylines for the Avengers who are more used to dealing with earthly threats.

One possible plot could be that the Assassins discover a strange and otherworldly artifact that is somehow linked to the power of Ghost Rider. The main Assassin character, perhaps Ezio or Altair, starts to have strange visions related to the Ghost Rider's world. They then have to figure out how to use or contain this power before it falls into the wrong hands, like the Templars. Along the way, they meet a character who has some connection to the Ghost Rider, like a descendant or someone who has been touched by the same dark magic.

Maybe Naruto discovers an ancient artifact in the Naruto world that has a connection to the Ghost Rider. When he touches it, he becomes the Ghost Rider. Now he has to balance his normal ninja duties with this new, fiery power. He could use the Ghost Rider's abilities to fight new threats that are emerging in the shinobi world, like a group of demons that the normal ninja techniques are ineffective against.

Imagine that there's a hidden organization in the Naruto world that has been secretly researching the power of the Ghost Rider. They capture Naruto and try to transfer the Ghost Rider's power into one of their own. But Naruto somehow manages to turn the tables and not only gains the power but also uses it to expose the organization's evil plans. He then uses his new - found Ghost Rider powers, combined with his ninja skills, to take on the leaders of the organization who are themselves powerful ninjas with dark intentions.

Another concept is that Naruto is possessed by a spirit similar to the Ghost Rider. His friends initially fear him, but he has to prove that he can use this new power for good. He might have to learn how to use the power without being consumed by the rage and darkness that often comes with it.

A possible plot is that the Ghost Rider's hellfire has an unexpected effect on the vampires in Twilight. Since vampires are undead, the hellfire might either have no effect, or it could be the one thing that can truly destroy them. This could lead to a race between the vampires and the werewolves to either use or stop the Ghost Rider. Also, the Ghost Rider could form an alliance with the werewolves as they are more in tune with the natural order which the Ghost Rider also represents in a way.

A crossover with Kamen Rider Zi - O could also be really cool. Zi - O travels through time, so he could accidentally disrupt the timeline in a way that affects Ghost's world. Ghost might have to team up with Zi - O to fix the timeline while also dealing with the enemies that are taking advantage of the time - chaos. They could encounter different versions of themselves from alternate timelines and have to figure out how to make things right.