Ok so you play as a white blood cell, and you fight germs and diseases. The style of gameplay could be a soulsborn type of deal but I feel like it would be more fun if it was made in the more fast paced style that the Devil may cry series is known for.

The bosses would start out as simple things like the flu, colds, and maybe blood clots.

The final boss is cancer. I just randomly thought of this in my head and thought it sounded cool.