Has a button installed to add credits. The game is old and the cabinet does has wear. Lots of dent and scratches. The corners have some damage.Overall still is good condition. I have a spare monitor that goes with the game but I'm not sure if it works or not. It is a fun game to play and would be a good addition to someone's game room. The item "Nintendo mario bros arcade machine" is in sale since Saturday, March 21, 2020. This item is in the category "Collectibles\Arcade, Jukeboxes & Pinball\Arcade Gaming\Video Arcade Machines". The seller is "gamergod20" and is located in Rice Lake, Wisconsin. This item can't be shipped, the buyer must pick up the item.