Personality: Dr. Eggman is an evil and megalomaniacal genius who is constantly planning to take over Sonic's world and those beyond his. Showing contempt for how "filthy" and "irregular" the world is, he views himself as obligated to perfect it by ridding it of what he deems as imperfections, including hunger, disease and, above all, free will. Arrogant, raucous and explosive, he believes that he is bringing peace and unity to Sonic's world under his brilliant leadership. He also does not accept Sonic's world as it is as a whole. Instead, he wants to transform it to his liking and set up terrifying amusement parks like Eggman Land. His reason for doing so is that he simply likes amusement parks and does not care about their effectiveness; all he wants is to control precisely what his enemies experience in their last moments. Eggman likewise prefers to show up and claim responsibility whenever he is carrying out his villainous deeds and make himself known to his enemies after he comes back from a defeat; as put by Sonic, subtlety is not Eggman's forte.

Voice Reference: https://youtu.be/SQF87uA_hMU?si=A4JOOcK80lplfewu&t=194