How to play I.S.B. Game

About International Soccer Board Game, from BoardGameGeek:

ISBG is an action/dexterity-based sports board game that emulates the action, skill and strategy of a conventional soccer match. The board game includes a game board having markings of a conventional soccer pitch. Circular player pieces are utilized to manipulate a ball piece and impart a sliding or a flipping motion in the ball piece. The players may pass, shoot, or to throw the ball in to emulate the play of a conventional soccer match. Players each control a soccer team that consists of discs representing soccer players. A small disc representing the soccer ball is flicked into the opposing player's goal to score points. The main mechanic used in ISBG requires players to flick a soccer ball token around the field by pressing the edges of the discs that represent soccer players down on it, thus causing it to move. The rules of regular soccer a followed when it comes to offsides, corner kicks, etc. The game is designed to allow for several modes of play.