A gaming machine comprises a game board 3 formed from a light-transparent member; a projecting device 42 for projecting a game medium onto the game board; a plurality of entrances 10 adapted to receive the game medium projected onto the game board; a display device 4 having a game proceeding/result display area 18 for displaying a plurality of first identification information items in a predetermined mode and entrance number display areas 17a to 17p adapted to display respective second identification information items corresponding to the entrances 10a to 10p, the display device being disposed such that the display areas are viewable through the game board 3; an online number arrangement changing button 7 for making an instruction to change the display of the display areas; and online number arrangement determining means 58 for receiving the instruction from the online number arrangement changing button 7 for a predetermined period, and changing the display of the display areas according to thus received instruction.