Patent ID: 8317594

Claim:
A gaming machine comprising: a display having a matrix of arrangement areas in which scatter symbols are arranged; a count device which increments/decrements an accumulated value; a controller which is programmed to operate in the following steps of (a1) rearranging scatter symbols in the arrangement areas, (a2) giving a payout according to the number of scatter symbols rearranged, (a3) when a specific symbol is rearranged in the arrangement areas as a result of a rearrangement of scatter symbols, adding, to the accumulated value, a value determined based on the number of specific symbols rearranged to update the accumulated value, and (a4) when the rearranged scatter symbols satisfy a predetermined condition, executing a bonus game including one or more free games, wherein the number of one or more free games is equal to the accumulated value; and an input device which receives plural types of bet operations from outside, wherein in step (a3) when a specific symbol is rearranged in the arrangement areas as a result of a rearrangement of scatter symbols, the controller adds, to the accumulated value, a value determined based on the number of specific symbols rearranged and a type of bet operation received by the input device.