Said to have a warm heart, Chaos is primarily a very loving and gentle creature who cares dearly for the Chao it protects. Mainly watching over the Chao as an inert pool of water, it only becomes active in times of danger, and only attacks when a Chao needs protection it is noted to have a bad temper. Not being around Chao, and stuck in a city, it sits around and eats often. It speaks in bubbles, gurgles and other water noises. It wants someone to help it lose weight and someone to tell it 'no'.