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An Invicishroom is a mushroom made in Little Fungitown in Mario & Luigi: Superstar Saga. It is given out as a prize at the local arcade. It is made from Starmen and 1-Up Mushrooms from the Mushroom Kingdom. When Mario ate one, he contracted Bean Fever, a disease which affects people who are not accustomed to the food of the Beanbean Kingdom. This disease causes the afflicted to become a Bean in three days! Luigi had to travel to Guffawha Ruins, alone, to find the cure, which happens to be Crabbie Grass.