To provide a game machine including a performance button that can improve amusement of a game.

There is provided a pressing member having a pressing surface that a player can press, and when the pressing surface is pressed, a pressing triggered performance is executed with it as a trigger. In this case, while the pressing surface is provided in a surface area visible to the player, as a game advances, the surface area (adjacent area) adjacent to the visible surface area is switched from a state invisible to the player to a visible state. In such a manner, in addition to the originally visible area (area provided with the pressing surface), the player can see the area adjacent to the area as well, and thus an impression as if the pressing surface has become big is given. This can attract the interest of the player by giving surprise to the player and can improve the amusement of the game.