Kyūkyoku Chōjin R (Japanese: 究極超人あ~る, Hepburn: Kyūkyoku Chōjin Āru, "Ultimate Superhuman R") is a Japanese manga series written and illustrated by Masami Yuki. It was serialized in Shogakukan's Weekly Shōnen Sunday from 1985 to 1987. The series revolved around a teenage robot named R. Ichiro Tanaka. Later, it was revealed that R's creator Dr. Narihara only built R for a failed attempt to take over the world.