Maracas

From the Super Mario Wiki
Maracas

Maracas is a souvenir in WarioWare: Twisted! located in the Instruments folder. It features a man wearing a sombrero, holding a couple of maracas, at the center of a stage with an audience around him. When the console is tilted, the man shakes one of his maracas in the appropriate direction (turning left shakes the left maraca, turning right shakes the right maraca), which also changes the color of the stage. This can be repeated infinitely until the souvenir is exited.