Gaming machine and method having bonus game trigger adjustments based on supplemental data

A gaming machine comprising:

• a cabinet holding one or more video displays;
• a controller operatively coupled to control the one or more video displays;
• a credit input device in communication with the controller and adapted for accepting a physical item associated with a monetary value that establishes a player credit balance;
• a plurality of player-activated input devices in communication with the controller for setting wagers covered by the credit balance and initiating games for determining the outcomes of the wagers;
• a first data structure stored in a memory comprising data corresponding to a base game presentation;
• a second data structure stored in memory comprising data representing a set of game theme graphical objects;
• a set of bonus game data structures stored in memory, each representing a game presentation of a different bonus game each having a non-zero probability to be triggered in a base game round;
• a bonus trigger probability data structure stored in memory including first data on which is based the non-zero probabilities of the different bonus games being triggered in a base game round;
• wherein the controller is programmed to:
• adjust the first data in the bonus trigger probability data structure based on supplemental data to change the probability of at least one of the bonus games being triggered;
• in response to a wager activation by a player on one of the player input devices, (i) cause a game outcome to be generated with the chance of a bonus game trigger occurring being based on the current state of the game math probability data structure;
• (ii) activate the first data structure to cause the base game presentation to display conducting a base game to produce the game outcome and evaluating the outcome for winning patterns each having an associated credit award;
• (iii) in the event of a bonus game trigger, causing a selected one of the bonus game data structures to be activated to display a bonus game being conducted;
• and
• receive a player cash out input through the player controls and, in response, initiate a payout of the credit balance.