Very much like Dr Robotnik (western) becoming Dr. Eggman (Japanese) in Sonic titles since the late 90’s. In this case Eggman is played as an offensive nickname

Very much like Dr Robotnik (western) becoming Dr. Eggman (Japanese) in Sonic titles since the late 90’s. In this case Eggman is played as an offensive nickname Sonic has given Dr. Robotnik.