Having been made to think like Sonic, Chaos Sonic shared several of his personality traits. However, he was an unflattering imitation, specifically only possessing magnified versions of Sonic's more negative attributes: being cocky, overly talkative, competitive, and uncooperative. He was also shown to be sadistic and psychotic.

His extreme arrogance was his most prominent trait, and he constantly bragged and claimed himself superior to Sonic. He even thought of himself as the "new" version of 