for those who don't know the legend, polybuis is a mythical game that according to the myth appeared in a few arcades in 1980, and as mysteriously as it appeared, it dissapeared not a month later. apparently the game was extremely dangerous as it could hypnotise you. apparently every time someone plays, men in black would come in and extract user data. this game may be a bit demanding for people with really crappy computers like me, but for most it shouldn't be a problem
Epilepsy warning! shoot squares, avoid circles and go through gates. gates will increase the score multiplier, and you need 1000 points to beat the level and head on to the next