Bowser??? is the name of a boss in Paper Mario. It was a costume made by the Koopa Bros. to try to scare Mario away. It is said that Bowser loved the costume. Bowser??? has 10 HP and is seen in the Koopa Bros. Fortress. It is also related to Mecha Bowser which was used by Bowser Jr. in Super Mario Sunshine, except Bowser??? was made of wood and Mecha Bowser was made of metal. It breathes fire and shoots Bullet Bills at Mario. A signed poster of Princess Peach was stuck to the inside of Bowser???'s shell from then on.