The Pokemon could befriend the ponies. For instance, a friendly Bulbasaur might help the ponies in their gardens by using its grass - type abilities. The ponies, in return, could offer the Pokemon shelter and food. They could also learn from each other. Ponies could teach Pokemon about their culture, like the different pony tribes and their traditions, and Pokemon could show ponies their unique battle strategies.
The characters could interact through shared quests. For instance, if there's a dark force emerging in both worlds, they might work together to defeat it. Link could teach the ponies some combat skills like sword - fighting (maybe in a pony - friendly way), and the ponies could teach Link about their unique magic and how it works in Equestria.
The characters could interact through a portal that connects their two worlds. For instance, Applejack could enter the Undertale world and meet Toriel. Applejack's honesty and hard - working nature might impress Toriel, and they could exchange stories about taking care of others (Applejack on the farm and Toriel with the lost children).
Often, the Pokemon characters bring their skills like battling and training, while the MLP characters offer their friendship - based magic. For example, a Pokemon trainer might teach the ponies about strategic thinking in battles, and the ponies could show the trainers how to use the magic of friendship to boost their Pokemon's morale.
They can interact through battles. Pokémon trainers and Digimon tamers could face off in epic battles where they use their combined Pokémon - Digimon fusions. The characters would need to strategize based on the unique abilities of these fusions.
Scooby would probably be really curious about the ponies. He might sniff around them and try to figure out if they were some kind of strange dog - like creatures. Shaggy would be friendly right away, especially if the ponies offered him some food. The ponies, like Pinkie Pie, would be very excited to meet these new and strange visitors. She might throw a big party for them.
The ponies would probably be terrified at first. The Doomguy, on the other hand, would be confused by these small, colorful creatures. But eventually, they might find common ground. For instance, they could both be fighting for survival in a strange world. The ponies could offer their magic to help the Doomguy, and he could offer his combat skills to protect the ponies.
The Keyblade wielders like Sora, Riku, and Kairi would bring a sense of adventure and a different kind of magic to Equestria. The ponies, on the other hand, could teach them about the power of friendship in a more direct way. Donald and Goofy might be a bit startled by the ponies at first but would soon get used to them. Donald's magic could be compared to the magic of some of the unicorn ponies, and they could exchange magical knowledge.
When Kirby encounters a Pokemon like Charizard, at first Charizard might be a bit intimidating. But Kirby's fearless nature would make him approach Charizard. Charizard could be impressed by Kirby's courage and might give Kirby a ride on its back. They could then work together in battles, with Charizard providing the firepower and Kirby using his copied moves to support and finish off opponents.
The characters could interact through magic exchanges. For example, Hermione could be fascinated by the magic of the ponies, which is so different from the wizarding magic she knows. She might try to study it and figure out how it works. In return, Twilight Sparkle could be interested in the books Hermione reads and learn about wizarding knowledge.
The interactions would be really interesting. Naruto's immortality gives him a different perspective. He might not take losses in Pokemon battles as seriously as others. He could cheer up a sad Pokemon with his positive attitude. When it comes to trainers, he'd be a bit of an enigma. Some might be intimidated by his immortality and ninja powers, while others would be eager to be his friend. He could also introduce some Naruto - style training methods to the Pokemon world, like making Pokemon do tree - climbing exercises similar to what he did in his ninja training.