Patent ID: 8257162

Claim:
A slot machine comprising: a plurality of specific symbols; an accumulated number whose operand is a number of the specific symbols that have appeared; a plurality of symbols including the specific symbol; a symbol group including the symbols; a display device for displaying some of the symbols in an arranged state and for displaying a stock area during a predetermined period; a unit game in which a prize is awarded based on a total number of the same symbols which are arranged on the display device to a player; and a processor which is programmed, for progressing the unit game repeatedly with carry-over of the accumulation number; wherein the processor is programmed to store the accumulation number in a memory between unit games or at the end of a reel spin, and wherein the processor is programmed to execute each of processes from the process of (1) below to the process of (7) below: (1) selecting some of the symbols at random from the symbol group upon starting the currently unit game; (2) displaying on the display device the selected symbols in a rearranged state; (3) awarding a player a prize corresponding to a total number obtained by adding a number of the specific symbols included in the rearranged symbols to the accumulated number; (4) awarding the player a prize corresponding to a total number of the same symbols included in the rearranged symbols and finishing the current unit game; (5) including the number of the specific symbols included in the rearranged symbols in the accumulated number upon finishing the current unit game; (6) executing the processes of (3) above and (5) above only when the stock area is being displayed on the display device; and (7) adding the specific symbol of the operand to the stock area, in executing the process of (5) above.