After they successfully occupied New Mobotropolis the Iron Dominion began rounding up citizens and forced them to undergo the process of legionization. Microchips were also provided to the local Dark Egg Legion chapter designed to de-activate the bombs placed in their cybernetics, but also render them completely susceptible to the Iron Queen's Magitek. The Iron Dominion started using the Legionization process upon their arrival in New Megaopolis in 3237. The term 'legionization' was adopted after the remnants of the Dark Legion joined the Eggman Empire, as did the use of robes and the term ' Grandmaster' for Sub-Bosses. Robotnik's early experiments with creating cyborg warriors, which led to the creation of Monkey Khan. The Legionization process was first utilized by the Eggman Empire some point after the Xorda's attack on Mobius as an alternative means of enslavement, since the Bem made it impossible for Dr. In particular, Beauregard Rabbot claimed that the process had repaired his 'bum knee', while Matilda the Armadillo was equipped with arms that gave her vastly increased strength. While its intention is inherently sinister, Legionization does have some benefits, as evidenced by members of the Great Desert Dark Egg Legion. According to the Iron Queen, these explosives are implanted in such a way as to make them incredibly difficult-if not impossible-to remove. Even in the former cases, however, a certain amount of loyalty has been ensured by the installation of explosives in the cybernetic implants of the Legionnaires that Eggman can activate at any time by remote or voice command. In the case of unwilling recipients, the process is accompanied by brainwashing, rendering victims emotionless and obedient. Legionization differs from Roboticization in that it is often willingly undergone by various individuals who have pledged loyalty to Eggman. Eggman holding the explosive device placed in all legionnaires, from Sonic the Hedgehog #220.

Sonic 4 cybernetic outbreak rom