Battlestar Galactica is B6001, and I bet Auto Race is B6000. I'm not sure if Football 2 has a Rockwell chip. I know Basketball, Armor Battle and Sub Chase don't have Rockwell chips, and neither do the Funtronics games.
I have Gravity listed as:
Invented by: Tim Effler Programmed by: Peter Oliphant I don't think Lesser was involved on that one.