“Gamers who tried it couldn’t stop playing, and began acting oddly: they were nauseous, stressed, had horrific nightmares. Others had seizures or attempted suicide, many felt unable to control their own thoughts. It was only later that they recalled how Polybius was serviced more often than other games. Men in black suits opened the machine every week, recorded its data, and left, with no interest in its coins. Soon after it appeared, the mysterious arcade game vanished without warning—taken by the men in black suits, leaving no record of its existence.
That’s the story, at least. This legend is one of the big unsolved mysteries of the gaming world, though most concede that the game never existed…”
—Natalie Zarrelli, “The Urban Legend of the Governments Mind Controlling Arcade Game.” AtlasObscura.com. April 28, 2016.