JP2005152440A5 - - Google Patents

Claims (4)

Condition establishment determination means for determining whether or not to execute a game advantageous to the player, based on an extraction value extracted due to the detection of the game ball by the starting means provided in the game area;
A symbol display means for notifying the player of whether or not a condition is established by the condition establishment determining means by stopping the fluctuation of the symbol;
A probability variation function that increases the probability of becoming a game advantageous to the player,
A variation shortening function for shortening the variation time of the symbol;
With
A period during which the fluctuation shortening function and the probability fluctuation function are operating is a probability fluctuation period, a period during which only the fluctuation shortening function is operating is a time reduction period, and the probability fluctuation period and the time reduction period are The combined game period is the chance period,
The chance period includes a plurality of different at least one of the length of the chance period, the combination order of the probability variation period and the time shortening period, the number of the probability variation periods, and the number of the time shortening periods. There is a pattern chance period, and there is a chance period setting means for setting a chance period selected from the plurality of pattern chance periods ,
A gaming machine , wherein during the chance period, the color of the background image of the symbol display means is set to be displayed in the same color regardless of the probability variation period or the time reduction period . The chance period starts after a game advantageous to the player is executed,
The chance period setting means determines which chance period is to be selected from the plurality of pattern chance periods according to the type of symbol for notifying that the condition has been established by the condition establishment determination means that is stopped and displayed. The game machine according to claim 1, wherein the game machine is determined by: In the plurality of pattern chance periods, the length of the chance period, the number of times of the probability variation period, and the number of times of the time reduction period are the same, and the combination order of the probability variation period and the time reduction period is different. the gaming machine according to any one of claims 1 to 2, characterized in that set. 2. The chance periods of the plurality of patterns are set such that the length of the chance period is the same, and the number of times of the probability variation period and the number of times of the time reduction period are different. 2. The gaming machine according to any one of 2 .