The Moose Mushroom is a power-up in the Super Mario series. When touched, Mario will transform into Moose Mario.
When Mario touches the Moose Mushroom, he becomes Moose Mario, and his hat grows antlers. With this power-up he can do a headbutt dash that can kill enemies. This can also be used in midair to dash across gaps and obstacles.
The Moose Mushroom makes its first appearence in Super Mario Moose as the main new power-up. It is used to headbutt dash.
While the Moose Mushroom itself doesn't appear, Toads with the Moose Mushroom power appear as enemies.
The Moose Mushroom appears again in Super Mario Moose Deluxe. It acts the same as on the previous game.