Robotnik, Ivo

イボロボトニック/ドクター・エッグマン

Robotnik serves as the primary antagonist in most Sonic games, a brilliant scientist boasting an IQ of 300. He constantly tries to destroy sections of the world to repurpose them for his super-city, aiming for global domination, but is thwarted by Sonic and his friends on every occasion. He has attempted to realize his schemes using a scientific experiment and an ancient monster on two separate occasions, both efforts ending in failure (involving Shadow the Hedgehog and Chaos, respectively).
He rarely engages in combat personally, preferring to construct robots to execute his tasks, which are powered by small animals. His most prominent creations include the Egg Carrier (a flying fortress), the Death Egg (a space station), the Egg Mobile (his aerial transport), and Metal Sonic (a robotic duplicate of Sonic), alongside numerous other devices.
His grandfather, Gerald Robotnik, was also a genius scientist who originally created Shadow the Hedgehog using Black Doom's DNA.