Another theme is teamwork. When characters from different universes come together, like in a crossover with the Uncharted series, Nathan Drake and the Resident Evil 5 characters have to learn to work as a team. They have different skillsets, and they need to combine their abilities to overcome the challenges, which often involve both the puzzles from Uncharted and the zombie - like enemies from Resident Evil 5.
The exploration of new threats is also a big theme. If it's a crossover with a superhero universe, for instance, the Resident Evil 5 characters might be dealing with a super - powered villain who is using the Resident Evil viruses in a new way. This forces them to adapt and find new ways to combat the threat, which is different from their usual battles against the infected in the Resident Evil 5 game.
Survival is a common theme. Whether it's crossing over with another survival - horror franchise or a more action - oriented one, the characters are often faced with new threats and have to find ways to stay alive in the Resident Evil 5 crossover fanfiction. For example, when crossed with a post - apocalyptic world like in Fallout, they need to find resources and shelter while fighting off the Resident Evil enemies.
The theme of redemption often pops up too. Maybe a character from another franchise who has made mistakes in their own world gets a chance to redeem themselves in the Resident Evil 6 crossover. Or a Resident Evil character has a chance to make up for past failures by working with new allies from the crossover. It adds depth to the characters and the overall story.
Survival is a very common theme. Just like in the original 'Resident Evil 2', when characters from different universes cross over, they still have to fight to survive the zombie - infested Raccoon City or deal with the bio - weapons.
Survival is a very common theme. Since Resident Evil is about surviving in a world full of bio - horrors, when crossed over with other universes, the characters often have to adapt and survive in new and even more dangerous situations.
Character development is also a big theme. Writers often use the crossover situation to explore different aspects of Leon's character. For example, how he copes with being in a completely different world. And of course, there's the theme of combat. Leon is a skilled fighter, and in crossovers, his combat skills are put to the test against new and unexpected foes.
A common theme is the clash of different universes. Since it's a crossover, you often see Nemesis from Resident Evil entering a world with different rules, creatures, and characters. Another theme is power struggle. Nemesis is a powerful entity, and when put in a new environment, there's often a struggle for dominance.
Survival is also a big theme. Just like in Resident Evil, characters from both universes have to find ways to survive in a new and dangerous situation. For instance, Naruto characters may have to deal with the bio - weapons and traps of the Resident Evil world. Inversely, Resident Evil characters might struggle to survive in a world full of ninjas with superhuman abilities.
Medical emergencies are a common theme. Since 'The Resident' is a medical show, when it crosses over, the fanfiction often still focuses on dealing with complex medical cases.
Power and corruption are frequently explored themes. Vampires in these fanfictions are often powerful beings, and their power can lead to corruption. Writers play with how this power dynamic affects the overall Resident Evil universe, whether it's in terms of politics within a vampire - controlled area or how it impacts the remaining human survivors.
Another theme is the exploration of different worlds. Fanfictions might take Naruto characters into the Resident Evil world or vice versa. This allows for a lot of world - building and exploration of how the two very different universes would interact with each other. For instance, how would Naruto's Konoha village function in a world full of bio - hazards? Or how would the Umbrella Corporation react to the presence of ninjas?
Another common theme is mystery - solving. The world of Resident Evil 7 is full of secrets, like the origin of the virus and what really happened in the Baker's house. OCs are often involved in uncovering these secrets. They might explore hidden rooms, find old diaries, or interact with strange characters to figure out what's going on. This adds an element of intrigue to the fanfiction.