Mobile Suit Gundam was developed by animator Yoshiyuki Tomino and a changing group of Sunrise creators with the collective pseudonym of Hajime Yatate. The series was originally entitled Freedom Fighter Gunboy (or Gunboy) for the robot's gun, with teen boys the primary target demographic. Early production had a number of references to freedom: the White Base was originally "Freedom's Fortress", the Core Fighter was the "Freedom Wing" and the Gunperry was the "Freedom Cruiser".