One common theme is the clash of different mythologies. For example, when Bloodborne crosses with other game universes, their respective mythologies about gods, monsters, and the afterlife collide.
One unique feature is the blend of different art styles. Bloodborne has a very dark, gothic, and somewhat medieval - inspired art style, while RWBY has a more modern, anime - like style. In the crossover fanfiction, these two styles can create a really interesting visual in the reader's mind when they imagine the story.
One interesting 'bloodborne crossover fanfiction' could be the one where Bloodborne characters cross over with the world of Dark Souls. It creates an exciting new universe with different combat styles and lore combined.
In some Bloodborne hunter crossover fanfiction, a hunter could cross over into a modern - day setting. This would lead to a clash of the archaic and the contemporary. The hunter, with their Victorian - era clothing and archaic weapons, would be a strange sight in a world of skyscrapers and cars. They might have to adapt their hunting skills to deal with modern threats like criminals or supernatural entities that exist in this new world.
The unique settings that result from the crossovers are also a big draw. When Bloodborne crosses with 'Metroid', you might have a scenario where the hunters are exploring the alien landscapes of the Metroid world. The combination of Bloodborne's gothic architecture and Metroid's sci - fi environments makes for a visually and conceptually exciting read. It can also introduce new gameplay - like elements into the story as the characters adapt to the new settings.
There's also 'RWBY in Bloodborne's World'. This fanfiction takes the RWBY characters and drops them into the terrifying and mysterious setting of Bloodborne. It's great for those who like to see how different characters adapt to a new and dangerous environment. It often has some intense fight scenes as the RWBY girls use their skills against the nightmarish creatures of Bloodborne.
Well, Gehrman, the first Hunter, would make an excellent main character in such a fanfiction. He has a deep connection to the secrets of Bloodborne. When an Old One crosses over, he would be one of the first to sense the change. His knowledge and skills could be put to the test as he tries to figure out what to do. Also, the Doll could play a significant role. She could be a mediator between the Hunter and the Old One, perhaps trying to understand the Old One's intentions and communicate them to the Hunter.
Well, a cool concept is the power dynamics. In fanfiction, the Old Ones are extremely powerful entities. So, in a crossover, they could disrupt the power balance in Bloodborne. They might introduce new forms of blood magic or madness that the Hunters have never seen before. Also, the cultural clash between the two universes can be fascinating. The Old One's way of existence might be completely different from what's known in Bloodborne, leading to all sorts of interesting plot developments.
The Hunter themselves are of course very popular. Their mysterious nature and badass fighting skills make them a central figure in any crossover. They can bring their signature weapons like the Saw Cleaver or the Hunter Axe into new settings.
One interesting concept could be the merging of the unique combat mechanics. For example, Dark Souls' methodical and strategic combat combined with Bloodborne's faster, more aggressive style. Maybe in the fanfiction, a character from Dark Souls has to adapt to the more blood - thirsty and fast - paced battles of Bloodborne's world.