I'm sure a lot of folks have seen/heard of this urban legend, but I find
it a fascinating piece of classic gaming and internet lore (not to
mention a decade of alt.conspiracy chatter). There's been numerous other
videos and podcasts around this as well.
If you haven't heard of Polybius, heres the short version: in the fall of
1981, a mysterious video game suddenly appeared in arcades around
Portland. The game, a black box with no name that involved geometric
patterns and colorful shapes was instantly addictive, hypnotic, and, in
some cases, dangerous. Two teenagers supposedly disappeared after playing
it. Mysterious men in black suits periodically came to service it. Was it
a secret government research program using gamers as unwitting guinea
pigs? Was it part of the CIAs MKUltra mind control program?