Well, in Heisei Riders Crossover Fanfiction, a cool concept is the team - up of riders from different eras of Heisei. They might face a common enemy that is too powerful for any single rider to defeat. This allows for new strategies and power combinations. Also, the idea of riders swapping their powers or equipment for a short time can lead to some really fun and creative storylines. And sometimes, the fanfiction might explore the backstories of the riders in ways the original shows didn't, like how their families or mentors from different rider worlds are connected.
Definitely Kamen Rider Decade. His ability to travel across different rider worlds makes him a natural fit for crossovers. Another popular one is Kamen Rider W. The concept of two - in - one rider is really appealing in crossovers as it can bring unique dynamics. And Kamen Rider OOO is also quite popular. His multiple combo forms can create interesting interactions with other riders' powers.
Well, a cool 'sonic riders crossover fanfiction' could involve a crossover with a superhero universe. Sonic and his crew could team up with superheroes to stop a common enemy who is trying to disrupt both their worlds. They could use their speed and the superheroes' powers in an epic showdown. Or perhaps a crossover with a post - apocalyptic world where they have to race through ruined landscapes and deal with new threats.
One interesting concept could be the clash of different mythologies. For example, if Nyarlathotep were to cross over with Norse mythology, the chaos he represents could disrupt the order of the Nine Worlds. Another concept might be the interaction between Nyarlathotep and modern-day characters. It could explore how an ordinary person would react to the presence of such a malevolent entity from Lovecraftian lore. Also, the idea of Nyarlathotep influencing different historical events in a crossover fanfiction can add a new layer of depth, like how he might have affected the fall of the Roman Empire in a fictional scenario.
One interesting concept could be the combination of different alien species from various sci - fi universes with the Space 1999 setting. For example, mixing the Goa'uld from Stargate with the Moonbase Alpha crew. It could create really unique power dynamics and storylines.
One interesting concept could be Momonga in a different game world, like being transported to a fantasy RPG world. He might use his unique skills from the original setting to survive and thrive there.
One interesting concept is the collision of different character personalities. For example, when a heroic character from one universe meets a morally ambiguous one from another. Another is the exploration of different power systems. How would a magic - based character fare against a technology - driven one? Also, the cultural clashes can be fascinating. Different universes might have unique social norms and values, and seeing how characters adapt or react to these differences can create engaging storylines.
In Avatar 2009 crossover fanfiction, a cool idea is a crossover with a post - apocalyptic setting. The Na'vi could be faced with the challenges of a world destroyed by humans in a different way. They might have to deal with new threats and also learn from the survivors of the apocalypse. Also, a crossover with a superhero universe could be fascinating. Picture the Na'vi getting superpowers or having to deal with superheroes coming to Pandora.
One interesting concept could be a crossover with the Men in Black. Imagine the Ghostbusters teaming up with the MIB agents to deal with paranormal entities that are also of alien origin. They would have to combine their different technologies and ways of handling the supernatural and extraterrestrial.
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.
A time - travel crossover within 'the simpsons crossover fanfiction' is also cool. The Simpsons could travel back in time to the Stone Age or forward to a futuristic world. In the Stone Age, they might have to deal with dinosaurs and primitive living conditions, and in the future, they could encounter advanced technologies that they don't understand.