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The Billy Blastoff toyline consisted of several of 4" tall child-faced adventurers made from plastic. They were introduced by Eldon in 1968 and made until early 1970's. The concept appears to have been licensed from Tomy for distribution in the US, Canada and Europe. Billy Blastoff was also sold as a deluxe Space Set in which he was accompanied by his friend Robbie Robot, wich also had his own action set. Billy and Robbie could be bought separately or were part of different Action Sets.
Special battery powered vehicles had a gear beneath the figures' pack which also served as the battery pack. This battery pack was also able to power accessories via jack and wired plug. These accessories were figure-held, such as a Space Gun, Radar Scope, and underwater light.
Eldon also made some "spin-offs" including a board game and the Bubble Popper, both set around the Billy Blastoff theme.