Obviously, Megaman X and Roll.EXE are very popular. They are the main characters after all. But characters like Zero from the Megaman series also often make appearances and are quite popular in fanfictions.
One idea could be a time - travel plot where Megaman X and Roll.EXE are sent to a different era in the digital world. They have to adapt to new rules and enemies while trying to find a way back. Another could be a story where Roll.EXE gets infected by a virus and Megaman X has to find a cure without harming her.
X and Zero are definitely the most popular. X is the main protagonist of the series, so he often takes center stage in fanfictions. Writers love to explore his journey, his growth, and his battles. Zero, on the other hand, is his cool and powerful partner. His backstory and his relationship with X are often the focus of many fan - made stories.
Naruto himself is often very popular. Writers like to explore different aspects of his character, like his growth as a ninja in new and unique situations. Sasuke is also a common focus. His complex personality and his journey towards redemption or further power - seeking are interesting to write about.
In Naruto fanfiction, Sasuke is often very popular. His cool and brooding nature makes for interesting storylines. Naruto himself is also a common focus. In Megaman fanfiction, Megaman and Proto Man are popular. Their heroic personas and their relationship as brothers or comrades are often explored in different ways.
Zero is obviously one of the most popular. He's the main character in the original series, so he often takes center stage in fanfictions. Ciel is also quite popular as she is an important figure in the Megaman Zero world and has a complex relationship with Zero.
One interesting Megaman X Exe fanfiction could be about a new adventure where X and his friends discover a hidden power. It might involve them facing a new and powerful enemy that challenges their abilities in ways they haven't experienced before.
Definitely Geo Stelar from Megaman Starforce and X from Megaman X. Geo has his own set of skills and X is iconic in his series. They would be the natural leaders to start interactions between the two groups.
One common theme is friendship. X and Roll are often depicted as having a strong bond of friendship. Another theme is adventure. They go on various adventures together, fighting bad guys. And there's also the theme of loyalty, as they are always loyal to each other in most of the fanfictions.
One popular 'Megaman and Roll' fanfiction might be those that explore their adventures in a post - game world, where they face new threats together. For example, a story could have them exploring a hidden part of the world filled with ancient technology that was left behind by an extinct civilization.
The popularity of Megaman Exe crossover fanfic lies in the fact that it allows fans to see their favorite characters in new and unexpected situations. It combines different universes and concepts, which is always exciting.