Gaming machine arranging symbols

1. A wagering machine for determining an award to be given based on rearranged symbols, the wagering machine comprising:

a display device including a display area for variably displaying and showing a part of symbols associated with a plurality of scroll lines;

an input device for receiving an instruction related to a game;

a value-addition mechanism for receiving game media;

an award payout mechanism by which game media is paid out to a player or credited to an available-betting-amount account of the player; and

a controller for controlling unit games in which the symbols associated with the plurality of scroll lines are scrolled and a part of the symbols are rearranged in the display area, the controller being programmed to execute the following processing as a result of the player having made a bet input of an amount of game media:

(a) determining symbols to be rearranged in the display area at random and causing the symbols to scroll along the scroll lines in a normal scrolling motion;

(b) selecting a revised-scrolling-motion mode from among a plurality of available revised-scrolling-motion modes according to which scrolling motion of symbols along a given scroll line is changed relative to the normal scrolling motion; and changing the scrolling motion of a first scroll line, which is at least one of the plurality of scroll lines, so as to scroll in accordance with the selected revised-scrolling-motion mode under a condition where predetermined symbols are aligned on a predefined payline when the symbols of the first scroll line are being scrolled and symbols on remaining second scroll lines are stopped; and

(c) rearranging the symbols to be rearranged in the display area after executing the processing (b);

wherein different ones of the available revised-scrolling-motion modes have different winning-combination expectation levels associated with them and the revised-scrolling-motion mode that is selected from among the plurality of available revised-scrolling-motion modes corresponds to a pre-retrieved winning-combination expectation level, whereby the changed scrolling motion of the first scroll line is indicative of the pre-retrieved winning-combination expectation level.

2. A wagering machine according to claim 1 , wherein there is a possibility that no award is given even when the scrolling motion of the first scroll line is changed,

wherein the plurality of available revised-scrolling-motion modes include a first revised-scrolling-motion mode and a second revised-scrolling-motion mode, and

wherein the possibility that no award is given after the symbols of the first scroll line are being scrolled in the second revised-scrolling-motion mode is higher than the possibility that no award is given after the symbols of the first scroll line are being scrolled in the first revised-scrolling-motion mode.

3. A wagering machine for determining an award to be given based on rearranged symbols, the wagering machine comprising:

a display device including a display area for variably displaying and showing a part of symbols associated with a plurality of scroll lines and providing a predefined payline for determining whether to give the award;

an input device for receiving an instruction related to a game;

a value-addition mechanism for receiving game media;

an award payout mechanism by which game media is paid out to a player or credited to an available-betting-amount account of the player; and

a controller for controlling unit games in which the symbols associated with the plurality of scroll lines are scrolled and a part of the symbols are rearranged in the display area, the controller being programmed to execute the following processing as a result of the player having made a bet input of an amount of game media:

(a) determining symbols to be rearranged in the display area at random and causing the symbols to scroll along the scroll lines in a normal scrolling motion;

(b) selecting a revised-scrolling-motion mode from among a plurality of available revised-scrolling-motion modes according to which at least one of direction of scrolling, speed of scrolling, time of scrolling, and time to stop scrolling of symbols along a given scroll line is changed relative to the normal scrolling motion; and changing the scrolling motion of a first scroll line, which is at least one of the plurality of scroll lines, so as to scroll in accordance with the selected revised-scrolling-motion mode under a condition where a winning symbol combination for winning the award is partially completed on a predefined payline when the symbols of the first scroll line are being scrolled and symbols of remaining second scroll lines are stopped;

(c) rearranging the symbols to be rearranged in the display area after executing the processing (b); and

(d) giving the award in a case where the winning symbol combination is completed on the predefined payline with the rearranged symbols;

wherein different ones of the available revised-scrolling-motion modes have different winning-combination expectation levels associated with them and the revised-scrolling-motion mode that is selected from among the plurality of available revised-scrolling-motion modes corresponds to a pre-retrieved winning-combination expectation level, whereby the changed scrolling motion of the first scroll line is indicative of the pre-retrieved winning-combination expectation level.

4. A wagering machine according to claim 3 , wherein there is a possibility that no award is given even when the scrolling motion of the first scroll line is changed,

wherein the plurality of available revised-scrolling-motion modes include a first revised-scrolling-motion mode and a second revised-scrolling-motion mode, and

wherein the possibility that no award is given after the symbols of the first scroll line are being scrolled in the second revised-scrolling-motion mode is higher than the possibility that no award is given after the symbols of the first scroll line are being scrolled in the first revised-scrolling-motion mode.