Game is fully electronic, with electronic sounds, no CPU. The backglass is silkscreened to show the ball-in-play numbers in the upper left corner. Interestingly, the actual words 'Ball In Play' appear in the lower right corner, closer to the five stars used to 'discreetly' count any awarded extra balls. A two-digit digital replay counter is located in the lower left corner of the backglass and reportedly increments only by coining. However, the threshold mode switch seems to have a setting for replay awards. A replay option would make sense for export games, or could be used in areas of Italy where local police had no time to check on compliance with the national law that banned replay awards. If further research proves replays cannot be earned through game play, then we will add the Specialty of Add-A-Ball to this listing. We previously listed the year of manufacture as 1978. However, the artist signed both the backglass and playfield as 1976.