The movement is the same as that of a person on a pogo stick. An air spring has advantages over other forms of pogo stick propulsion. Rick is also armed with a pogo stick that allows him to paralyze enemies. The pogo stick is replaced by a punch attack. This was an antecedent of the pogo stick as well as today's spring stilts. The next extreme pogo stick, the Vurtego, was launched in 2006. While still playing two trumpets at once, Wally stopped using the pogo stick. Telly Monster also used the pogo stick in Sesame Street. The two-handle pogo stick design was patented by George B. Hansburg in 1957. In January 2006 Vurtego released its first pogo stick, the V1. One-legged, or pogo stick robots use a hopping motion for navigation. In late 2015 Vurtego's latest pogo stick, the V4, was introduced. She also owns a pogo stick that her mom got her when she was young. The modern pogo stick was invented by Max Pohlig and Ernst Gottschall, from Germany. The TK8 pogo stick, another air compressed design launched in France and Andorra around 2010.