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The Cheese Shroom is a mushroom made of pure cheese made by Leeuwtje. It is extremely powerful but most people think it is just cheese. Evil Guy knows what it really is. The main focus of Super Mario RPG 3: Quest for the Cheese Shroom is to get back the Cheese Shroom. When Mario eats a Cheese Shroom he becomes Cheese Mario and can shoot cheese balls at enemies. Luigi can also use the Cheese shroom too and do the same stuff like mario did, because it so strong Mario's enemies try to steal it.