Also, the interaction between characters from different story arcs or groups within the Black Trigger universe can be a great concept. It could create interesting conflicts and friendships. For instance, characters who were once enemies might have to work together against a common threat in the crossover fanfiction, which can be a source of both drama and character development.
One interesting concept could be the combination of different characters' abilities from the original Black Trigger universe in new and unexpected ways. For example, seeing how a character with a speed - based Black Trigger might team up with a power - based one in a crossover scenario.
The character interactions can be really engaging. Characters from 'world trigger' might form unexpected alliances or rivalries with characters from the crossover universe. This can lead to new story arcs and development for all the characters involved.
One interesting concept could be alternative character backstories. For example, a fanfiction might explore what led a side character to become an agent. Another concept could be different rankings systems within the Border organization. It could also be about new types of Triggers that are created by the characters in the fanfiction.
One interesting concept could be the fusion of Naruto's ninja abilities with the supernatural elements from High School DxD. For example, imagine Naruto using his shadow clone jutsu in the middle of a devil - angel battle in the DxD universe. It would add a whole new dynamic to the battles there.
Another concept might be a crossover with a science - fiction element. Imagine if soldiers from a futuristic military force were sent back in time to the Black Hawk Down incident. They could bring advanced technology and different combat strategies, which would change the whole dynamic of the battle and the rescue operations.
First, you need to have a good understanding of the Black Trigger universe, including the characters, their abilities, and the overall setting. Then, decide which elements from different parts of the Black Trigger world you want to cross over. For example, you might choose to combine two different squads.
A crossover with Dragon Ball Z might also be cool. The time - traveling aspect of Chrono Trigger could blend well with the Saiyans' ability to reach new levels of power. Picture Chrono and his friends training with Goku to gain new combat skills and facing off against foes like Frieza in a combined universe.
One interesting plot idea could be a crossover between the Devil May Cry universe and the Castlevania universe. The protagonist with Devil Trigger ability could find himself in the dark and haunted world of Castlevania. He has to use his powers to fight off the hordes of demons and undead creatures that are native to Castlevania. Maybe he teams up with a Belmont character and they exchange combat techniques and knowledge about their respective worlds.
One idea could be a crossover with a magical world. The World Trigger agents suddenly find themselves in a place full of wizards and magic spells. They have to adapt their combat skills to deal with magical creatures and powerful magicians. Another plot could involve a crossover with a post - apocalyptic world. The agents must use their Trigger abilities to survive in a world filled with mutated beasts and scarce resources.
One interesting concept could be Shreck crossing over with other fairytale characters in a modern setting. For example, Shreck meeting characters from 'Cinderella' in a bustling city. It can create humorous and unexpected interactions, like Shreck's gruff nature clashing with Cinderella's elegance.
One interesting concept could be the combination of Ben 10 000's powers with other fictional universes. For example, if he were to cross over with the DC universe, seeing how his alien forms interact with super - heroes like Superman or Batman. Maybe his Four Arms form could have an epic battle with Doomsday.