Slot machine including a plurality of video reel strips

A slot machine comprising:

• a first display for displaying a part of a plurality of reel strips having different kinds of symbols arranged thereon, the symbols including a plurality of kinds of character symbols;
• a processor for causing a slot game including a base game and free games to proceed on the first display;
• a value-addition mechanism by which currency or other gaming value to be bet can be added to the gaming machine and credited to a player's available-betting-amount account;
• a bet-placing mechanism by which the player can bet an amount of gaming value on the outcome of a slot game to be played;
• and
• a pay-out mechanism by which gaming value can be paid out to the player or credited to the player's available-betting-amount account under control of the controller and in accordance with a final outcome of the slot game once it has been played, wherein,
• the processor being programmed to execute processes (A) to (B) described below.
• (A) A process in which upon causing the base game to proceed, used are base game reel strips on which on all of the plurality of reel strips, symbols whose each kind is the same are arranged in succession.
• (B) A process in which upon causing the free games to proceed, used are free game reel strips on which on all of the plurality of reel strips, the symbols whose each kind is the same are arranged in succession and only in a case of the one kind of character symbols selected in the selection game, symbols of the selected one kind are arranged in succession, a number of the symbols of the selected one kind being larger than a number of symbols of the selected one kind displayed on the base game reel strips.