Hockey Girl

The game being played on the backglass is known as croquet. The locking metal back door slides downward to access the backbox. However, upon sliding downward, the barrel of the metal lock hits the wood frame of the backbox bottom thus preventing the door from a full removal, leaving it hanging in its service position. Reportedly, once the backbox insert is hinged outward for servicing, it is easy for the top edge of the door to damage the rotor wipers on the player unit and the match unit. To avoid this, the operator might risk bending the door outward (it's somewhat bendable, we are told) until the lock barrel clears the backbox frame, allowing the door to slide down fully and out of the way, or the operator might remove the lock. Either workaround is a possibly annoyance to the operator.