Chaosky is an infant neutral Chao of standard coloration: light blue with yellow hands and feet, pink wings, and large blue eyes. Like other neutral Chao, they also have a teardrop-shaped head with a yellow orb floating above it.
In Sonic Adventure 2 and its remake Sonic Adventure 2: Battle, Chaosky is a level one beginner opponent in Chao Karate. In gameplay, Chaosky moves around slowly on the floor while fighting in Chao Karate since they crawl instead of walking. Their recommended status is 10.