Dr. Robotnik

Dr. Ivo Robotnik is a scientist who has plans to take over Planet Mobius. Robotnik learned of the power sources on Mobius thanks to his grandfather, a geneticist by the name of Gerald Robotnik. With this, Robotnik formed the plan to use these power sources (The fauna of South Island and the Chaos Emeralds) to have the planet under his rule. Unfortunately for the doctor, there's one small-blue nuisance who won't go without a fight.