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.
A way to explore madness in the crossover is by having a character from the Bloodborne world try to use the knowledge or power of the Old Ones. Since the Old Ones are so far beyond human understanding, this attempt could backfire horribly. The character might start to lose their grip on their identity, their memories becoming muddled with the strange knowledge of the Old Ones. This transformation into madness could be a central part of the fanfic's plot, as the other characters then have to deal with this once - sane individual who has now become a threat due to their new - found madness.
One interesting plot idea could be a character from the Bloodborne world being transported to the realm of the Old Ones. They could struggle to adapt to the strange and eldritch environment while also trying to find a way back home. Maybe they discover secrets about the Old Ones that could change the very fabric of both worlds.
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.
The Old Hunters in Bloodborne is a DLC that expands on the game's lore. It tells the tales of the hunters from the past. There are new areas to explore, like the Fishing Hamlet. It also features new bosses such as Ludwig, the Holy Blade. These bosses are often tougher and more complex than those in the base game, and their designs and fight mechanics are deeply rooted in the dark and twisted lore of the Bloodborne world.
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.