The object of the game is to score the most points, while not revealing which colour you are until the end. It requires good bluffing and analytical skills. 7 colours are used, and there can be up to 4 "robot" colours moving around. On their turn a player rolls a die and can move any number of pieces a total number of spaces that adds up to the number on the die. This can result in a score, and the game continues until one player reaches 129+ points. At this time all players make secret guesses as to which player is which colour (gaining +5 points at the end of the game for each correct answer). The game ends when a spy reaches 142+ points, and then a winner is determined after guess points are added.