The main character is probably the black bird itself. There might also be characters such as a wise old owl that gives advice to the black bird, or a group of mischievous squirrels that either help or hinder the black bird's journey in the game story.
Since we don't know the exact story, the main character is likely the black bird. But there could be other characters like predators that the black bird has to avoid in the game, or friendly animals that it teams up with.
The key characters are definitely the birds and the pigs. The birds, like the Red bird which is kind of the basic angry bird, are the ones on a mission. They have different colors and abilities which make them unique. The pigs, on the other hand, are the troublemakers. They took the eggs which set off the whole angry bird saga. They try to hide in their flimsy or sometimes elaborate forts.
There are many possibilities for the main characters in this story. If it's a story about the black bird's place in an ecosystem, other animals in that ecosystem could be main characters too. For example, if the black bird has a symbiotic relationship with another species, that other species could be considered a main character. Also, if there are humans involved, it could be a family that has a special connection to the black bird, and all the family members could be main characters in different ways.
Without having read the novel, it's difficult to say for certain. But perhaps there is a village outcast who becomes the central figure in the story after being the only one able to communicate with the black bird oracle. There could also be a wise elder who guides the protagonist in their journey related to the oracle, and a group of doubters who don't believe in the power of the black bird oracle at first.
Since I don't know the specific 'Black Bird Graphic Novel', I can't say for sure. But it could have a character named Black Bird as a main character, along with some friends or foes that are part of his or her journey.
In the 'nineteen claws and a black bird stories', the black bird is likely the main focus. But it's also possible that there are other characters that are introduced as the story unfolds. There could be a family of the black bird, where the nineteen claws are a hereditary trait. Or there could be a human character who discovers the black bird and its nineteen claws and becomes part of its story, perhaps trying to study it or help it in some way.
Since I don't know the exact 'Black Bird Series Story', it could be that the main character is the black bird itself. It might be a solitary bird with a unique personality.
The main characters could be two rival players. One who always chooses the black side and is very strategic and cunning, and the other who prefers the white side and is more about fairness and calculated risks.
I'm not sure specifically as it depends on the actual story, but it could be a group of survivors with different personalities and backgrounds.
As I don't know the details of the 'Black Rose Game Story', I can't say for sure who the main characters are. But perhaps there could be a character named Black Rose herself if the title is that literal.
Since I don't know the exact 'black rose game story', I can't say for sure. But it could have a brave hero or heroine as a main character who is on a quest related to the black rose.