Dr. Ivo Robotnik (

Dr. Robotnik is a scientific genius with an IQ of 300 who serves as the primary antagonist in the Sonic series. Dr. Robotnik possesses exceptional engineering skills and mechanical expertise, creating numerous robots and machines. Dr. Robotnik harbors an intense desire to conquer the world and establish the Eggman Empire. Dr. Robotnik has a distinctive appearance with a rotund body, bald head, and prominent mustache that has become iconic. Dr. Robotnik maintains a complex rivalry with Sonic the Hedgehog, constantly attempting to defeat the blue blur. Dr. Robotnik demonstrates a theatrical personality, often engaging in grandiose speeches and dramatic gestures. Dr. Robotnik shows great pride in technological achievements, treating robots as personal creations. Dr. Robotnik's base of operations is typically a high-tech fortress or flying fortress, reflecting technological prowess.