For scott pilgrim fanfiction, you could focus on the side characters. For instance, write about Stephen Stills' dreams of making it big in the music industry and the challenges he faces. Or you could create a story about Kim Pine's unspoken feelings for Scott and how that might have affected the group dynamics. You can also play with the idea of introducing a new character into their world and how that would change things.
One idea could be exploring Scott's life before the events of the main story. Maybe his early relationships or how he got into music. Another could be a 'what if' scenario, like what if he didn't have to fight Ramona's exes. It could also be interesting to write a fanfiction from Ramona's perspective during those battles.
Some ideas for scott pilgrim fanfiction could be based on alternate universes. Picture a world where the power of love doesn't give Scott his fighting abilities but instead, it's something else like his skateboarding skills. You could also write a fanfiction that dives deep into the backstories of Ramona's exes. Maybe explore what led them to become the people they are and how their relationships with Ramona started. This would add more depth to the already interesting world of Scott Pilgrim.
A Scott Pilgrim and 'The Matrix' crossover would be wild. Imagine Scott realizing that his world is just another level of the Matrix. He could use his fighting skills, along with Neo's knowledge of the Matrix, to break free from some new digital - age evil that's controlling the music scene in his world.
One idea could be exploring what would happen if Scott Pilgrim had to face a new set of evil exes, but this time they were all from different dimensions. It would add a whole new level of craziness to the story.
A fanfiction could focus on a time - travel plot. Knives goes back in time to a point before she met Scott Pilgrim. She then has the opportunity to change the way things happened in their relationship from the very beginning. This would allow for a completely different take on their story, and could introduce all sorts of new interactions and plot twists.
One idea could be an OC who is a new roommate of Scott. This OC could be from a different dimension and has unique powers that start to affect Scott's daily life and his battles in strange ways. For example, the OC's power might accidentally make Scott's enemies stronger or change the rules of combat.
One idea could be exploring Scott's life before the events of the movie. Maybe he had a different love interest that didn't work out and how that shaped him. Another could be a 'what if' scenario where Scott loses his fight against one of the evil exes early on and how it changes the whole story. For example, Ramona might have to step up more to save Scott.
In some fanfictions, the characters might swap worlds. So, Scott Pilgrim could end up in the Hidden Leaf Village. He would be really confused by all the ninja stuff going on. He might try to use his guitar skills as a form of 'ninja art' which could lead to some really funny situations.
One interesting concept could be how the different characters from the Scott Pilgrim universe interact in a harem - like scenario. For example, seeing how Scott manages relationships with multiple characters at once and how their personalities clash or blend in this new dynamic.
One interesting storyline could be Ramona and Scott going on a parallel adventure in a dream world. In this fanfiction, they might face their inner fears and insecurities represented as strange dream creatures. It would add a new layer to their relationship and character development.
A possible storyline is that Kim Pine discovers a hidden talent of Scott Pilgrim that no one else knew about, like he can paint amazing murals. This could lead to them collaborating on an art project in the neighborhood. Well, in some fanfictions, there could also be a storyline where they go on a road trip together. Along the way, they meet all kinds of strange characters and have to overcome various obstacles, which in turn strengthens their friendship or even leads to something more.
Perhaps there could be a plot where the two worlds start to merge. Scott Pilgrim and his friends find themselves in Konoha, and Naruto has to help them adjust. Scott might get into trouble by accidentally challenging some of the ninja trainees to a fight, thinking it's like his normal battles. Naruto then has to step in and smooth things over. In the process, they could learn from each other's fighting styles. Scott could show Naruto some of his more unorthodox fighting moves, and Naruto could teach Scott about the importance of focus and inner strength in combat.