To provide a slot machine where game property is improved by stocking winning roles based on the intention or skill of a player.

The slot machine is provided with: a drawing processing means for deciding a winning role by drawing; a liquid crystal display device 11 for informing the player that the winning role is a special role; a winning role stock means for canceling winning to the special role and stocking it in a stock flag Fs based on operation of a stock key SK by the player; a stock release means for releasing the winning of the special role held in the stock flag Fs and deciding it as a winning role when a prescribed stock release condition is realized; and a reel stoppage control means for performing stoppage control of reels RL1 to RL3 for allowing only the winning role to win based on stop keys SP1 to SP3 by the player.