Whistle

The whistle is a used by Captains to call idle Pikmin to them. A small circle show's where the whistle will blow to. Holding the button down makes the circle go larger. When used, the captain shoots a few sound waves that hit the circle and expand, while turning from red to yellow, and eventually blue. In Pikmin 2 the Pluckaphone allows the captains to uproot pikmin using the whistle.