Paul Robson sent me Battlestar Galactica, a 1978 LED game from Mattel. It's based on the Rockwell B6001, a modified calculator chip.
ROM array after top metal layer removed
Mattel Patent 4322074 for a similar LED electronic game references the Rockwell B6000.
Rockwell Patent 4339134 for a calculator/blackjack game that probably uses a similar microprocessor.
Mattel Patent 4162792 for Mattel Auto Race and Football that use similar chips.
Mattel Football prototype built using source code from patent 4162792
