Before Jimmy Neutron was both a movie and TV show, it was created as a pilot in July 28, 1998 dubbed "Runaway Rocketboy!". In it, Jimmy is in a red and white striped shirt instead of a red shirt with a neutron symbol on it. And also Jimmy is in middle school instead of elementary. Some people say that his original design actually looks similar to Johnny Quasar. It never aired but 5 years later, it was released as a bonus feature of the Confusion Fusion DVD.