Systems Bally AS-2518-133 History Tools A further revision of Bally’s solid-state MPU line, used in the early 1980s, still based on the Motorola 6800 architecture. This board refined the earlier -35 design with cost reductions and reliability improvements. Games (5) Big Bat Bally, 1984 Granny and the Gators Bally, 1984 Gold Ball Bally, 1983 Baby Pac-Man Bally, 1982 Grand Slam Bally