Dr. Topper

Dr. Topper (who prefers to be called Dr. T) is a green Hammer Bro in Super Mario RPG: Legend of the Seven Stars. He appears behind one of six red doors in Bowser's Keep; two doors lead to platform stages, two doors lead to battle stages, and two doors lead to puzzle stages. Dr. Topper is in charge of the puzzle stages, acting as a quizmaster rather than an enemy. If the player could not figure out his puzzles, he or she will be send back to the room with the six doors. Completing four of the six areas is required to progress through the game.