To provide a slot machine where rotating variable display bodies can easily be attached to and detached from a casing and where a member for fitting the rotating variable display bodies to the casing does not damage the usability of an apparatus to be arranged in its periphery nor obstructs wiring, etc.

A variable display device 50 capable of varying a displaying state consists of the rotating variable display bodies 51L, 51C and 51R which have a plurality of kinds of identification information arranged on their peripheral surfaces and which are rotated by driving of a driving means. At the prescribed place of the outer face of a supporting body 52 rotatably supporting the rotating variable display bodies 51L, 51C and 51R, an engaging means which is attachable to and detachable from a part 400 to be engaged formed at the prescribed place of the inner face of a casing 2 is formed. The part 400 to be engaged is engaged by the engaging means, thereby the rotating variable display bodies 51L, 51C and 51R can be fitted to the inner face of the casing 2 in an attachable and detachable manner.