From the Super Mario Wiki, the Mario encyclopedia
The Mushroom Cannon is the special item of Monty Mole, Peachette, Peach (Kimono), Toad (Party Time), and Shy Guy (Pastry Chef) in Mario Kart Tour. When used, it appears on the front of the player’s kart and shoots out Mushrooms in front of them for all racers to use. The Mushroom Cannon shoots out a total of ten Mushrooms, unless the player gets hit with another item. During a Mushroom Cannon Frenzy, Mushrooms surround the player. When Mushroom Cannon+ is active, three Mushrooms are shot at once at each launch rather than one.
Mario Kart Tour
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