A gaming machine is provided with a cabinet; a door (3), provided on the front face of the above-mentioned cabinet; a bill insertion slot (529), provided on the door (3); and a bill guide plate (52A), which extends outwards from the lower end of the bill insertion slot (529) and is for guiding a bill into the bill insertion slot (529). The bill guide plate (52A) has a plurality of substantially rectilinear slit openings (521) formed in rows. Even when a drink or other foreign matter is spilled onto the bill guide plate (52A), it can be prevented from getting on the various devices inside the cabinet via the bill insertion slot (529) and thus breakage of the various devices can be prevented.