Mona's Boomerang
Mona's Boomerang is a weapon owned by Mona, and is her main form of attack in WarioWare: Get It Together!
In her story, Mona leaves her house on an errand, leaving her three animals, her elephant, pig, and monkey, alone. When she returns, she comes back to find that her animals have made a big mess around the house. She uses her boomerang to discipline her animals and force them to clean up after their mess.
While controlling Mona, pressing makes her throw her boomerang, which stops her movement. The boomerang is controlled the same way as Mona is controlled, unable to stop unless recalled to Mona by pressing again. The boomerang can be used to interact with objects, and unlike Mona, the boomerang is invincible, allowing Mona to defeat enemies and reach faraway objects without dealing with hazards with her weapon.