Owing to the scarcity of colored circles, players will often be required to put themselves in unlikely or precarious positions, eventually causing someone to fall.His father agreed, for a short term, to support his son's idea for product development, and hired Foley, who negotiated a royalty agreement with Guyer Company for all games and toy items he designed.With the support of Reyn Guyer Sr., Charles Foley and Neil Rabens submitted, on 14 April 1966, and were granted on 8 July 1969, US Pat# 3,454,279,[4] for what was originally called "Pretzel".[5][6][7] Twister became a major success when actress Eva Gabor played it with Johnny Carson on television's The Tonight Show on May 3, 1966.[12] The Reyn Guyer Creative Group continues to work closely with Hasbro to develop and market new additions to the line of Twister products.[15] Being one of the earliest toy fads and a "national craze for a short time",[15] Twister was able to bring all age groups together, whether children or adults.