What are some interesting plot ideas for Ultraman Orb crossover fanfiction?

One idea could be Ultraman Nexus crossing over with another Ultraman, like Ultraman Tiga. They could team up to fight a powerful new enemy that is a combination of their previous foes. This would bring together different fighting styles and powers.

A cool plot could be Geed crossing over with a human superhero from another franchise. For example, he meets a spandex - clad hero who has no experience with giant monsters. Geed has to teach this hero how to fight in a world where the threats are so much bigger, and together they face a villain who has the ability to control both technology and kaiju.

Another plot could involve Ultraman Zero crossing over to a post - apocalyptic Earth. He finds a group of survivors who are fighting against mutated monsters. Zero has to use his powers not only to defeat the monsters but also to help the survivors rebuild their society, teaching them about hope and perseverance.

One idea could be an Ultraman crossover with Godzilla. Picture Ultraman teaming up with the giant lizard to fight a common enemy, like an alien kaiju that's too powerful for either of them alone. It would be epic to see their different powers combine, for example, Ultraman's energy beams along with Godzilla's atomic breath.

Definitely Ultraman Zero. He's a very popular Ultraman and his skills and personality would make for an interesting combination with Ultraman Orb. They could have some friendly rivalries while fighting side by side against a common foe.

One idea could be a character from the Enclave finding themselves in a situation where they have to team up with a group from the Fallout world they usually oppose. Maybe a lone Enclave soldier gets separated from his unit and is forced to rely on a group of wastelanders to survive. This could lead to a lot of character development as he sees a different side of the world outside the Enclave's ideology.

One idea could be that the reader is a scientist who accidentally discovers a new power source that attracts Ultraman Zero. They then team up to protect it from evil forces. Another could be the reader is from a different dimension and Ultraman Zero has to help them get back home while facing various challenges together.

One idea could be that the time travel orb sends Naruto to a crucial point in the past where he can prevent a major tragedy. For example, he might be able to stop the Uchiha massacre, which would change the entire future of the ninja world. This would lead to different alliances and power dynamics.

One idea could be that the Turtles from 1987 end up in the 2003 universe and have to adapt to the darker and more serious tone. They could team up with the 2003 Turtles to fight a common enemy like the Shredder. The 1987 Turtles' more light - hearted and comical ways might initially clash with the 2003 Turtles' brooding nature, but they eventually learn from each other.

One idea could be a crossover with Undertale. The characters from Glitchtale could interact with the original Undertale characters in a new and unexpected way. For example, Betty from Glitchtale could team up with Chara from Undertale for some sort of dark plan. Another plot could involve a crossover with a different game like Minecraft. The Glitchtale characters could find themselves in a blocky world, having to adapt to new rules and enemies. Maybe Sans from Glitchtale could use his powers in the Minecraft world in a really creative way.