| 摘要 |
PROBLEM TO BE SOLVED: To sufficiently arouse the expecting feeling of a game player as against privilege obtaining such as a probability fluctuation, etc., by unintentionally executing a lottery at the time of a hit in a pattern aligning game and deciding whether a mode is shifted to a probability fluctuation mode or not. SOLUTION: This machine is provided with a pattern aligning game executing means 70 for executing the pattern aligning game by one of the operation mode within a normal probability mode and a probability fluctuation mode when the ball wins a prize in a specified prize winning port 12, and a screen game executing means 80 for executing the screen game by one of the operation mode within a normal mode and a time shortening mode concerning the length of a variable display period when the ball hit onto a game board surface 11 wins the prize in a specified starting port. When a hit state appears in the pattern aligning game which is executed in a main variable display means 20 in a period when the time shortening mode is set, a probability fluctuation mode setting means 90 sets the operation mode when the pattern aligning game executing means 70 executes the pattern aligning game after a succeeding time into the probability fluctuation mode. |
