Patent ID: 7758415
Filing Date: 2010-07-20
Classification: G07F

Abstract:
1. A slot machine comprising: a plurality of symbol display means for displaying a plurality of kinds of symbols; a plurality of symbol variable control means for causing the symbol display means to conduct variable display and static display; game start reception means for receiving, for one game, a start operation of the game by a player; first lottery means for conducting an internal lottery to determine a final static symbol appearing mode under a condition that the start operation of the game is received by the game start reception means; second lottery means for conducting an internal lottery to determine whether to shift the game into a high probability mode in which a probability to shift the game into a bonus winning is higher when a specific condition is satisfied; game control means for conducting the game, image display means comprising an area corresponding to and covering a display window, the area to be made a transmissive area such that the variable and static displays of symbols of the respective symbol display means can be observed visually; switch means for causing a predetermined area of the image display means to function as a touch switch, which receives a selection operation to select the symbol display means provided on a position for replacing static symbols with a specific symbol capable of substituting any kind of symbols in the display window of the symbol display means in a static mode, when the symbols on the symbol display means are displayed statically by the symbol variable control means, in a case where the game is shifted to the high probability mode as a result of the high probability mode shift internal lottery by the second lottery means; and symbol replacement means for replacing visually a symbol of the selected symbol display means with the specific symbol by overlaying the specific symbols to cover a static display area of the symbol in the display window of the symbol display means having been selected on a display face of the image display means as triggered by the symbol display means receiving the selection operation utilizing the switch means, wherein the game control means determines the winning combination by regarding a stopped symbol of the symbol display means having been selected through the symbol replacement means at the winning determination time as the specific symbol that can be any kind of symbols.