According to urban legend, Polybius was a strange arcade game, similair to Tempest which brainwashed those who played it and was placed in arcades by a shady branch of the federal government. All retellings have a different agency, from the CIA, to the NSA, to the FBI, to even forign agencies like the KGB. In reality - at least, according to a former Atari employee - Polybius was a name for one of the early Betas of Tempest, and was tested in a few arcades. The game was known to cause Vertigo and Motion Sickness, and as such was pulled immediately.
by E. Moran May 13, 2004
Anything at all of a mysterious nature, most commonly talked about on the internet in forums and thus blown out of proportion, etc.
by Vornan Cuel November 13, 2003
by John Fru August 16, 2003
A mythical arcade video game said to be made by the government for mind control and manipulation. Depending on the source, it was either a 2-D Space Shooter or puzzle game.
by Cheeto Dust July 03, 2016