Cyberization, formerly known as Legionization, is the process of removing part(s) of a Mobian's organic body and replacing them with cybernetic implants, and it serves as an aspect of the Sonic the Hedgehog universe. It was derived from Dr. Ivo "Eggman" Robotnik's early experiments with creating cyborg warriors, which led to the creation of the hero Monkey Khan. The process, in the case of unwilling recipients, is accompanied by brainwashing, rendering victims emotionless and obedient. Mobians who undergo cyberization becomes members of one of the Dark Egg Legion chapters or Egg Army factions around Mobius.