Playmatic produced this game twice as evidenced by the two sets of flyers that we show, the second time with simplified playfield artwork and new melodies. The backglasses in the flyers are slightly different as well. We suspect Playmatic was compelled to reissue the game for more reasons than just artwork and melodies, but we do not know what other differences exist between the two versions. Perhaps they updated the technology, such as the MPU. We also don't know if the 'Romset Version 2' in our Files section is labeled that way to indicate it belongs to only one production version but not the other. We have only one manufacturer date of 1979 and don't know if this date applies to both versions. Until we have more information, both versions are presented together in this listing. We list this game as having the Playmatic MPU-1 board. An owner of two games matching the game in the flyer that we label as "1st Version game" both have a Playmatic MPU-C board. If sending us pictures of your game, please provide the cabinet serial number and indicate which MPU your game has. Please include a picture of the full board to show its nomenclature.