Complex sentence: He is depicted differently from his countpart in the Sonic the Hedgehog series of games in that he is not a mad scientist; instead, he is a dictator who has conquered much of Planet Mobius.
Split into simpler sentences: He is depicted differently from his countpart in the Sonic the Hedgehog series of games, in that he is not a mad scientist. Instead, he is a dictator who has conquered much of Planet Mobius.