Part of TSR's minigame series. From the rulebook...'They've Invaded Pleasantville minigame is a two player game of secret invasion by space invaders. One player, the Alien player, moves the Alien-controlled and uncontrolled pieces, and the other player, the Town player, moves the Town-controlled pieces. There are 12 game turns in this game. In any given turn, playing pieces representing various townspeople will be moved across the gamemap, which is a map of Pleasantville.The Alien player will try to keep the whereabouts of the Alien-controlled townspeople a secret, while he or she 'takes over' more unsuspecting townspeople and builds up strength for the final showdown with the Town player. The Alien player, in short, will try to create a large army of townspeople-zombies, eliminate any opposition, and occupy Pleasantville as a base of operations. The Town player will try to convince the townspeople that there is an alien menace in the town, and will attempt to fight any Alien-controlled townspeople encountered. With luck and careful play, the Town player hopes to defeat the Alien-controlled'zombies', locate the Alien Headquarters, and destroy the Alien Sub-Commander.' - BoardGameGeek