The psychological NSA experiment mysterious arcade game Polybius has popped up in a few instances on Kotaku previously, but now's the first time you can enjoy it in well-produced, documentary form. Stuart Brown of Ahoy fame, who has cranked out some quality clips in the past, decided to tackle the urban legend in an extensive, hour-long video.

Some video game urban legends turn out to be true - like that massive pile of discarded E.T. games - while others are no more myths. But myths can be fun -- and despite no one ever turning up any concrete evidence of the fabled Polybius arcade game, it hasn’t stopped popular culture from latching onto it and further feeding the monster.