A gaming machine has a variable display for displaying graphical
information corresponding to a graphical element of a principal game; a
controller coupled to the variable display for causing the variable
display to display the graphical information; and a secondary display for
displaying an image. The image of the secondary display is used in a
secondary game that is different from the principal game, and is
responsive to one of a plurality of predetermined principal game playing
states. A player can win the secondary game and the principal game in the
variable display. The images in the secondary display constitute a history
of the predetermined states that have been presented in the variable
display during the principal game.