The official GI Joe game of Action - Strategy - Offense - Defense. The object of this game is to be the first player to score 15 points. The game board Attack and Defense Area is divided into 91 grid squares. Each grid square is divided into 4 squares on which the soldiers move. The soldiers can move forward, backward, sideways, and diagonally. In the center of the Game Board, there are 3 bridges. The Attacking soldiers can move across the Game Board only by crossing the bridges.