Perhaps a group of evil villains in the My Little Pony world manage to summon Godzilla to cause chaos. However, the main pony characters, like Twilight Sparkle, believe that there must be a way to communicate with Godzilla and find out why he's acting so aggressively. They discover that a dark magic spell has been cast on him, and they use their own magic to break the spell. Godzilla then becomes an ally and helps the ponies against the villains.
In a Godzilla and My Little Pony crossover fanfiction, it could start with a strange energy rift opening up. Godzilla emerges from it into Equestria. Some ponies think he's just a big, scary monster, but the more curious ones, like Pinkie Pie, approach him. Pinkie Pie's friendly nature starts to have an effect on Godzilla, and he calms down. Meanwhile, the ponies find out that there are other creatures following Godzilla through the rift that are a danger to Equestria. So, with Godzilla's help, they work together to defend their land.
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.
One possible plot could be that some Pokemon accidentally end up in Equestria. The ponies are initially scared but then they realize the Pokemon are friendly. Together, they team up to stop an evil force that threatens both their worlds, like a powerful dark - type Pokemon and an evil unicorn. They use their combined powers of friendship and unique abilities to defeat the enemy.
A plot could involve a group of villains from another world who want to capture both Godzilla and Luna to use their powers. They manage to transport Godzilla to Equestria. Luna, being the protector of the night, finds Godzilla and realizes that they need to escape and fight back. Along the way, they meet various other My Little Pony characters who help them in different ways. Eventually, they face the villains and with their combined strength and the help of their new friends, they defeat the villains and Godzilla returns to his own world, but not before a new friendship is formed between him and Luna.
One possible plot could be that the ponies from Equestria accidentally stumble into the wizarding world of Harry Potter. They could be initially confused by all the magic there which is different from their own. The ponies might try to help Harry and his friends with their unique pony magic, like Twilight Sparkle using her knowledge of spells in Equestria to solve some of Hogwarts' mysteries. And perhaps the Hogwarts students could learn about friendship in a new way from the ponies.
Definitely Godzilla and Twilight Sparkle. Godzilla is this huge, powerful force of nature, while Twilight Sparkle is a very intelligent and magically gifted pony. Their encounter would be full of contrasts. Twilight would be trying to figure out Godzilla using her knowledge and magic, and Godzilla would be this unknown entity to her. It would be interesting to see how they interact, with Twilight probably trying to communicate and Godzilla being more of a primal force at first.
In a fanfiction, there could be a story where a pony discovers a magical artifact that can control Godzilla. At first, the pony uses it for fun, making Godzilla do small things like create waterfalls with its tail. But then, an evil force tries to steal the artifact to use Godzilla for destruction. The ponies then have to protect the artifact and convince Godzilla to help them fight the evil.
Well, the plot could involve the ponies somehow getting transported to the Ice Age world. Maybe Twilight Sparkle could use her magic in a wrong way and open a portal. Then they'd meet the Ice Age characters like Manny, Sid and Diego. The ponies' colorful and positive nature could contrast with the harsh Ice Age environment. They could team up to solve a common problem, like finding a way back home for the ponies while also helping the Ice Age animals deal with a new threat.
One idea could be that Godzilla accidentally stumbles into Equestria. The ponies are initially terrified but then realize Godzilla is not there to harm them. They try to communicate and find a way to send him back to his own world.
One idea could be that the ponies discover Pokemon eggs in Equestria. They start to raise the Pokemon and learn about their powers. For example, Twilight Sparkle could study the different types of Pokemon moves using her magic knowledge.
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.