Peahat

Pea Hats are an enemy within the Legend of Zelda series, beginning with The Legend of Zelda. They were originally known as "P. Hats", perhaps suggesting "propeller hats".

The Legend of Zelda
In The Legend of Zelda, Pea Hats would rise out of the ground and spin to attack Link. They came in red and blue.

The Legend of Zelda: Ocarina of Time
In The Legend of Zelda: Ocarina of Time, Pea Hats are giant spinning enemies in Hyrule Field. They are easily avoided.

The Legend of Zelda: The Wind Waker]]
In The Legend of Zelda: The Wind Waker, they are small enemies that can only be rendered vulnerable by using the Deku Leaf on them. They will crash due to the wind created by the leaf, and in this state can be easily killed.