In Midway Set 1, the score value and the 'PTS' graphic were shifted to the right 8 pixels, potentially putting the 'PTS' graphic in the overscan area of the monitor.The higher score values meant that the 'BONUS GALAXIP' string had to be readjusted.In newer sets, there are four extra life settings, and all of the scores are higher than in previous sets.In Midway Set 2 only, the extra life settings are lower.In the oldest sets, there are three extra life settings, and one setting that disables the extra life feature entirely.This is the only difference between the Taito set and Namco set 2. Of course, each publisher has a different logo on the title screen. They seem to follow the chronology below: