True, I only now realized that I didn't block the path that leads to the end of the game, it should only open after defeating Boos Armor and gaining the necessary ability to access the final area. As for the boos' damage, I believe I didn't make a very good choice, I put cumulative damage, as long as I continue taking damage it increases and resets to normal after a while. In any case, I'm very happy and grateful that you tried it.