The Devo Chamber was a large, room-sized machine that President Koopa used to de-evolve criminals or those opposed to him in the Super Mario Bros. film. The Devo Chamber involves strapping people onto an automatic chair, binding them by the arms to prevent escape. Afterward, when the knob to the time period of the character's ancestors is set, the victim is reeled away before the chair is launched up into a de-evolution device, exposing the head to rays designed to forcibly de-evolve the person's head down to the size indicated. Koopa commonly uses this as a form of punishment.