From WiKirby, your independent source of Kirby knowledge.
Chacha is an enemy that can be found in Kirby 64: The Crystal Shards - first appearing in Stage 1 of Aqua Star. It yields no Copy Ability when swallowed.
Chacha is a spherical creature with a grass skirt and two maracas, which it flails about as it dances in place. If Kirby approaches, Chacha will make a quick strike in his direction with the maracas, which can hurt him. Often, however, it is seen in the background, where Kirby cannot interact with it at all.