Professional Noisemaker

The Professional Noisemaker is a giant red  head, a treasure in Pikmin 2. It is found on the fifth and final sublevel of the Submerged Castle and is held by the wicked Waterwraith. When this treasure is retrieved, the Pluckaphone, part of the Exploration Kit, is made functional by the Hocotate ship. Like some other treasures, if the player defeats the Waterwraith, but does not have enough Pikmin to carry the Professional Noisemaker, which requires the strength of 15 Pikmin, it will change weight to match the player's army.

Trivia

 * The Pluckaphone was originally going to be called "Pluck Megaphone", judging from the early English script left inside the final version of Pikmin 2.