The Roboticizer is one of Dr. Ivo "Eggman" Robotnik's most fearsome creations, depicted in the comic book/cartoon franchise of Sonic the Hedgehog and the videogame franchise of Sonic the Hedgehog.
The Roboticizer is what Robotnik uses to transform innocent animals, Mobians and pretty much anything else he desires into Badniks - the namesake process of Roboticization was (and remains) the stuff of nightmares as organic material is converted into technology and most (if not all) free will is stripped away, making the victim a slave to Robotnik.
The process was originally believed to be totally irreversable but in the Archie comics some extremely advanced alien species found ways to reverse the process - though this does little to reduce the fear the technology has on Mobians.
Victims of the Roboticizer are countless but some of the most famous in the Sonic canon are Uncle Chuck (also known as Sir Charles Hedgehog) and Bunni Rabbot (though Rabbot managed to avoid complete Roboticization, instead becoming "half-and-half") and Jules Hedgehog (Sonic's father) - in at least one alternate reality Doctor Robotnik has even used the Roboticizer on himself (showing how mad he can truly be).
- The machine was incorrectly referred to as the "Robotizer" in StH #129. Some argue that this was the unique name of the Bem's device. However, Sonic refers to Dr. Robotnik's machine as the "Robotizor" instead of "Roboticizer" as well, thus proving it was incorrectly spelled throughout the whole issue. Eggman later called it the "Robotizer" during the Genesis Saga, but when the world return to normal Snively corrected him with the proper version of "Robotization".
- The earliest Roboticizer seen in the Sonic cartoons, or at least a device that can turn living beings into robots, was in Adventures of Sonic the Hedgehog episode #48 "Blackbot the Pirate". Robotnik used a ray gun called the Robot-Transmogrifier Ray on Blackbeard to turn him into a robot, and later roboticized a whale to eat Sonic and Tails.
- Even before Adventures of Sonic the Hedgehog, one of promotional pictures from earlier, scraped Sonic cartoon shows different round-shaped illustration of Roboticizer, doing its regular process and is titled as Dr. Robotnik's Robotic Transformation Machine.