One possible plot could be that Godzilla emerges in the Naruto world during a time of great unrest. The shinobi are initially terrified but Naruto, with his never - give - up attitude, decides to try and communicate with Godzilla. Maybe Godzilla is there because it senses a great evil in the Naruto world that is similar to the threats it has faced in its own. Naruto and his friends then have to figure out a way to work with Godzilla to defeat this common enemy.
A cool plot could be that a strange rift in space - time opens up, connecting the Naruto world to Godzilla's dimension. Godzilla stumbles through into the Naruto world. The kages initially see it as a threat and send all their forces against it. But Naruto realizes that Godzilla is not an enemy. He senses that Godzilla is actually protecting something. It turns out that there are some creatures from Godzilla's world that have also slipped into the Naruto world and are preying on the villagers. Naruto teams up with Godzilla to fight off these invaders.
Well, perhaps there could be a plot where some of the villains in the Naruto universe manage to somehow summon Godzilla as a weapon. But Godzilla refuses to be controlled and starts causing chaos. Naruto, being the hero, tries to understand Godzilla's nature. He discovers that Godzilla is being driven by some primal instinct due to the strange chakra - like energy in the Naruto world. Naruto then uses his own chakra to soothe Godzilla and together they turn against the villains who summoned it.
A plot could involve a mad scientist in the RWBY world who tries to recreate the power of Godzilla using Dust. However, the experiment goes wrong and starts to attract the real Godzilla. The RWBY teams then have to deal with the chaos caused by the approaching Godzilla. They might think that Godzilla is there to destroy their world, but as they fight, they discover that Godzilla is actually attracted to the unstable energy that the mad scientist created, which is also a threat to the balance of their world. So, they have to find a way to work with Godzilla to neutralize the dangerous energy source.
A plot could involve a mad scientist in the Marvel universe who, in an attempt to create a super - weapon, accidentally opens a portal to Godzilla's world. Godzilla comes through the portal and starts rampaging. The Fantastic Four, being experts in strange phenomena, are the first to investigate. Reed Richards tries to figure out a way to send Godzilla back while also protecting the city from its destruction. Meanwhile, the X - Men get involved as some mutants start to have strange reactions to Godzilla's presence. For example, Beast might be fascinated by Godzilla's unique physiology and try to communicate with it. Eventually, they discover that Godzilla is actually chasing a powerful energy source that the mad scientist's experiment also attracted. They work together to lead Godzilla to the energy source, which is then used to power a device that sends Godzilla back home.
In this crossover fanfiction, there could be a situation where a powerful Kaiju has some sort of ability that is affecting Godzilla's normal behavior. The Pacific Rim team has to figure out how to reverse this effect while also fighting off other Kaiju threats. They send in their most advanced Jaeger to try and communicate with Godzilla and form an alliance. Along the way, the pilots of the Jaeger learn about Godzilla's history and the ancient battles it has fought against similar threats.
One possible plot could be that Godzilla emerges from the ocean near Isla Nublar. The dinosaurs in the park sense his presence and become either agitated or strangely submissive. The park staff, including Dr. Grant, have to figure out how to deal with both the pre - existing dinosaur chaos in the park and the new threat of Godzilla. Maybe Godzilla is attracted to some ancient power source on the island that was buried deep underground for eons and the dinosaurs are somehow connected to it as well.
Well, perhaps in the fanfiction, Godzilla is a result of some dark magic experiment gone wrong in the Fairy Tail universe. The guilds have to deal with this giant creature that is causing destruction everywhere. Lucy might use her Celestial Spirits to try and hold Godzilla off while the others come up with a plan. Gray could use his ice - make magic to try and freeze parts of Godzilla to slow it down. And in the end, they find a way to reverse the dark magic and turn Godzilla back to normal or send it away.
The plot could involve a new, super - powerful entity that is a combination of the Upside Down's dark forces and a kaiju - like being. This entity starts to wreak havoc in both Godzilla's world and Hawkins. The Stranger Things kids find a way to call Godzilla for help, and Godzilla arrives just in time to face this new threat. As they fight together, they learn about each other's strengths and weaknesses. Eleven uses her powers to enhance Godzilla's attacks, while Godzilla's presence scares off some of the smaller Upside Down creatures, giving the kids a chance to regroup and plan their next move.
A possible plot could be that Godzilla is accidentally teleported into the Pokemon world. The Pokemon trainers think he is a new, extremely powerful and dangerous 'Pokemon'. So they try to stop him. But as they try to fight Godzilla, they realize that their normal attacks have little to no effect. Then, a group of legendary Pokemon, such as Arceus and Lugia, decide to communicate with Godzilla. They find out that Godzilla is just as confused as they are about this new world. Together, they try to find a way to send Godzilla back to his own world while also dealing with the chaos that his presence has caused in the Pokemon world, like disrupted ecosystems and panicked Pokemon.
One possible plot could be that Godzilla somehow gets transported to the world of My Little Pony. The ponies are initially terrified, but then they realize Godzilla is there because he's being chased by an even greater threat from his own world. So, the ponies, with their magic, decide to help Godzilla fight off this threat and in the process, they learn about each other's strengths and form an unlikely friendship.
The plot could be really exciting. Maybe Naruto is on a mission and suddenly Godzilla emerges in the ninja world. Naruto, being the hero he is, would first be in shock but then try to find a way to either stop Godzilla if it's causing destruction or communicate with it. He could use his shadow clone jutsu to distract Godzilla while he figures out its weakness. And perhaps Godzilla's presence could disrupt the chakra in the ninja world, causing all kinds of chaos that Naruto has to fix.
Well, one possibility could be that Godzilla somehow ends up in the wizarding world. Maybe a powerful dark magic spell goes wrong and creates a portal that sucks Godzilla in. Harry and his friends at first think it's a new kind of dark creature created by Voldemort. They try to fight it using spells, but soon realize that Godzilla is not exactly evil. Godzilla might then start causing destruction in Hogwarts, and the wizards have to figure out a way to either send it back or control it without killing it.