PURPOSE: To cause a positive will for throwing in a coin by allowing an image of an object to be projected in a coin holding state, and an image of an object to be projected, varied at the time of releasing the coin to execute a variation having a story property conforming to dissipation of the coin.

CONSTITUTION: An object 5 to be projected, which is inverted and placed in a space formed in the inside of a box body 4 is inverted by a concave mirror 8 provided in a position looked at through a peep-window part 3 and reflected as an erected image. First of all, when a coin 7 is thrown in from a coin throw-in port 2. the coin 7 is held in a position of the object 5 to be projected, by which a projected image being in a state that a part of its object 5 to be projected is varied to the coin 7 can be looked at the peep-window 3. Subsequently, when an external operating piece 9 provided on the box body 4 is operated, holding of the coin is released, and simultaneously, a part of a form of the object 5 to be projected is varied temporarily. A person who throws in the coin looks at from the peep-window 5 a fact that the form of the object 5 to be projected is varied as soon as the coin 7 disappears from the projected image, therefore, he feels interest as if he looks at jugglery.