Bokkun is Dr. Eggman's loyal, yet often put-upon, robot messenger. He's a small, green robot with a perpetually worried or sad expression, characterized by his large, often teary, eyes. Despite his timid demeanor, Bokkun is remarkably resilient and dedicated to delivering Eggman's messages, which often involve delivering explosives disguised as gifts to Sonic and his friends. He speaks in a high-pitched, almost whiny voice, adding to his generally melancholic persona. While he frequently laments his dangerous assignments and Eggman's harsh treatment, he never outright defies his creator. Bokkun's role often provides a touch of dark humor and a sense of the smaller, more vulnerable side of Eggman's vast robotic army.