One idea could be an Indoraptor crossover with modern-day military. The Indoraptor's stealth and hunting abilities could create a chaotic situation on a military base. It might start hunting soldiers one by one, leading to a high - stakes battle for survival.
A crossover with a post - apocalyptic world would be cool. The Indoraptor could be a terrifying new threat in a world already filled with danger. It could compete with other mutant creatures for territory and resources. Imagine a group of survivors trying to outwit this intelligent predator.
Maybe a crossover with a group of time - traveling scientists. They accidentally bring the Indoraptor to their time and have to figure out how to send it back while avoiding being hunted. This could involve a lot of scientific jargon and problem - solving. For example, they might need to study the Indoraptor's DNA to find a way to open a time - travel portal that it can go through. And along the way, they could learn more about the Indoraptor's behavior and how it evolved in its own time period.
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.
A group of scientists who were involved in creating the Indoraptor in the first place could be main characters. They might have to face the consequences of their creation when it crosses over into another world or situation. They would be trying to either control it or destroy it.
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.
A great plot idea would be Android 21 crossing into a world where technology is feared. She'd have to prove that not all advanced technology is bad. Also, she could cross into a world of pirates, using her skills to navigate the high seas and fight off other pirates.
A plot idea could involve a magical crossover. Maybe a character from a magical fanfiction world accidentally enters the Wayside School. This could lead to chaos as the normal rules of the school are disrupted. The students might have to learn about magic to help the new character return home, and in the process, they gain some magical abilities themselves for a short time. This could also create new friendships and rivalries among the characters.
A Broly crossover with the Naruto universe could be really cool. Picture Broly in the Hidden Leaf Village, his incredible power causing quite a stir. Maybe he could get involved in the fight against the Akatsuki, using his brute strength in a world of ninjas. It would be interesting to see how he adapts to chakra and ninja techniques.
One idea could be a crossover with a zombie apocalypse-themed story. The undead elements from Sankarea could blend well in a world full of other zombies, creating new challenges for the characters. For example, Rea could use her unique undead state to her advantage in a different way than the regular zombies.
One idea could be to cross Danganronpa 2 with another popular game like Persona. The characters from Danganronpa 2 could find themselves in the world of Persona, dealing with the Shadows and having to adapt their skills. For example, Hajime could learn to use a Persona and use his detective skills to solve the mysteries related to the Dark Hour. Another plot idea could be a crossover with a fantasy world. The Danganronpa 2 characters are transported to a magical realm where they have to face new challenges. Maybe they have to fight dragons or solve magical riddles, all while still dealing with the underlying distrust and mystery that is characteristic of Danganronpa. A third idea is to cross it with a post - apocalyptic world. They have to survive in a desolate landscape, find resources, and deal with new threats, all while trying to figure out if there's a way to get back to their own world.