You can make it unique by changing the setting. Instead of the normal Naruto or Spiderman settings, create a new world where both exist side by side. For example, a post - apocalyptic world where they have to rebuild society and fight off new threats.
Set the story in an alternate universe. Maybe in a world where Konohamaru is the Hokage and Naruto is his advisor. Explore how their roles are reversed and how they handle different situations compared to the original storyline. This would add a unique twist to the fanfic.
You can make it unique by adding a cultural twist. For example, if Naruto's potty mouth is influenced by a foreign ninja culture he encounters. Maybe there are different 'bad words' or expressions in that culture that he starts using. This would not only make the fanfic different but also add an element of exploration to the story.
One way to make your 'shunshin no naruto fanfic' unique is to explore the history and origin of the shunshin technique in more depth. You could create a backstory about how it was first discovered and by whom. Incorporate ancient ninja clans that were the first to master it and their secrets. Also, focus on the emotional and psychological aspects of using shunshin. For example, a ninja who is afraid of using shunshin because of a past accident but has to overcome that fear to save their village. This would add a layer of complexity and uniqueness to your fanfic.
Yes. Focus on details that are often overlooked. For instance, give Spiderman a new hobby or a different family background. This can add depth to his character and make your story stand out.
Set the fanfic in a different world or dimension. Instead of the usual Mushroom Kingdom setting, put them in a steampunk world or a world filled with magic that is different from what we've seen in the Mario games. This change of scenery will make the interactions between Peach and Bowser fresh and exciting. In a steampunk world, Bowser might have a huge mechanical castle and Peach could be leading a group of inventors. Their conflict and potential relationship would be very different from the norm.
Use unique locations that are not typically associated with Twilight but still fit the mood. For example, an old abandoned factory that has a lot of dark corners and interesting architecture. Dress the models as Twilight characters and play with light and shadow to create a different kind of Twilight - inspired scene.
You can make it unique by focusing on character crossovers in unexpected ways. For instance, have a minor character from Naruto team up with a major character from Chrono Trigger. This can bring out new dynamics and storylines. Also, play with the different art styles of the two franchises. Maybe describe the Naruto world with the color palette or visual aesthetics of Chrono Trigger.
To make it unique, you could give Cinder some of Naruto's ninja abilities like the ability to walk on walls or use substitution jutsu. This would be a really unexpected twist for readers who know Cinder from her original story.
Mixing the lore of both universes in a creative way. Like, if the Halo rings had an impact on the creation of the different Kingdoms in RWBY. This would not only blend the two stories but also give a fresh take on the existing RWBY lore.
Set the reunion in an unexpected location. Instead of Hogwarts or Diagon Alley, have it in a Muggle city. The characters would have to navigate the Muggle world while still using their magic secretly. This would add an element of novelty and humor to the fanfic.