This game was not marketed in the US. One game owner indicated that it was a kit for Premier's 1989 'Bone Busters Inc.'. The owner of the game pictured here stated its MPU is Gottlieb System 80B and not a System 3, and he suspects this game came in both versions. A second person, in France, also stated this 1991 conversion kit is System 80B so we have changed this listing to reflect that.