A gaming machine includes a controller for controlling operation of the machine, a primary display is provided on which a game to be played is displayed. A secondary display is also provided on which a scorecard, indicating prizes to be paid upon a winning game being achieved, is displayed. The game and the scorecard are controlled by the controller and the scorecard is a dynamic scorecard with the relationship between combinations of symbols constituting a winning game and the prizes awarded by the scorecard for that particular game changing from game to game.