In some cave game stories, the main character could be a scientist. They enter the cave to study its unique geological features or to find new species. There might also be a sidekick, like a local guide who knows some of the cave's secrets but not all. And there could be an antagonist, like a rival scientist or a creature that doesn't want the main character to explore the cave further.
Since I don't know the exact 'the cave game story', it could be an adventurer as the main character. Maybe a brave explorer who is not afraid to enter the unknown cave.
It might be a group of characters. There could be a leader, perhaps an experienced spelunker who guides the others. Then there could be a young and curious member who is always eager to discover new things in the cave. And maybe a strong and reliable one who helps with physical challenges like moving boulders.
In Cave Story, the main character is Quote. He's an amnesiac who finds himself in a strange world full of danger and mystery. Another significant character is Curly Brace. She has her own story arc and interactions with Quote. There are also various NPCs that help to flesh out the game's world, such as the doctor character who provides some backstory and assistance at certain points.
In many cave - related stories, there could be an explorer as a main character. In the 'Misery Cave Story', it might be an adventurer who ventures into the cave out of curiosity or in search of something valuable. There could also be a guide who is supposed to lead the way but maybe things go wrong. Another possibility is that there is a lost hiker who stumbles upon the cave and becomes part of the story.
As the story isn't known to me, the main characters might be a group of friends who decide to explore the dark cave out of curiosity. Or it could be a solitary adventurer seeking solitude or a particular treasure hidden within the cave.
There could be an explorer as a main character, who is the one to enter the cave and face the monster.
In some 'cave man stories', there could be a hero - like a cave man who saved the group from a big predator. He became a symbol of courage for the whole community. And there might be the shaman - like figure who was believed to have some special connection with the spiritual world and could perform certain rituals for the well - being of the group.
There could be an explorer. They are often the ones who dare to enter the cave and face the monster.
It might be a group of friends. You know, they hear about the spooky cave and decide to check it out for fun or out of curiosity. They could be young and naive, not fully realizing the danger they are getting into, and then they have to face all kinds of scary things in the cave together.
Perhaps the main character is a curious individual, like a child or a young adult. And there might be some animal characters as well that he encounters during his adventure in the cave.
I don't know specifically as we don't have much information about this 'Balrog Cave Story'. But it could be a hero who dares to enter the cave where the balrog lives.
I'm not sure specifically without more information about the story. It could be a group of explorers, perhaps some young and adventurous friends.