Patent ID: 9646464
Date: 2017-05-09
CPC Classifications: G07F

Claim:
1. A gaming machine for playing a base game and a feature game, the gaming machine comprising: a credit input mechanism configured to receive a physical item representing a monetary value for establishing a credit balance, the credit balance being increasable and decreasable based at least on wagering activity; hardware meters configured to monitor the credit input having been provided by the credit input mechanism; a manually operable player interface configured for player interaction to place a wager, in accord with said credit balance having been provided by the credit input mechanism, and to receive a manual physical input associated with the base game; a game controller configured to, in accord with the placed wager, initiate the base game, and to detect a trigger condition during the base game; and a memory configured to store a trigger number based on prize awards having been previously awarded; a video display operable to display the base game and the feature game, and wherein the game controller is further configured to initiate and to cause the video display to display the feature game with a first feature prize when the trigger condition is detected during the base game, and to initiate and to cause the video display to display the feature game with a second feature prize when a feature game frequency criterion is met, the feature game frequency criterion being based on said trigger number; and an output mechanism configured to provide payouts based on one of the first feature prize and the second feature prize in response to winning the feature game.