Polybius is an urban legend about an old German arcade machine that was in German arcades in 1981. As said in the legend, it states that Polybius was a type of puzzle game that shows you controlling this ship shooting this rotating Polygon. It was rumored that it was banned because of the fact it gave kids seizures, horrific Nightmares, made them go insane, and even suicidal tendencies. The legend was brought to life in September 2003s issue of GamePro magazine as a story in secrets and lies. There is also a few Subliminal messages in the game, like a head flying in the background, and flashing text.