 In tradition with the show's animation style, Kenny is composed of simple geometrical shapes and primary colors. He is not offered the same free range of motion associated with hand-drawn characters; his character is mostly shown from only one angle, and his movements are animated in an intentionally jerky fashion. Ever since the show's second episode, "Weight Gain 4000" (season one, 1997), Kenny, like all other characters on the show, has been animated with computer software, though he is portrayed to give the impression that the show still utilizes its original technique.
