A Propeller Mushroom.

The Propeller Mushroom is a new Mario item that made its first appearance in the Wii video game, New Super Mario Bros. Wii. When Mario acquires one, he will get a propeller suit and a helmet with a propeller on it. By shaking the Wii Remote, that player will be able to make Mario jump even higher, before he lightly falls to the ground. The player will be able to move Mario around while he's falling to the ground as well. It also serves as a third power up for Mario.

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