Mattel Look Alive Football: http://www.handheldmuseum.com/Z_Imgs/MESS/Mattel-LookAliveFootball_CPU.jpg Chip apparently applied directly to the circuit board. Not sure how easy that will be to dump, but at least it will be easy to see visually by popping off the plastic cover (which I didn't do, but not opposed to...) Saw the 'Copyright Mattel 1998' on the board and thought What the hell? Then realized '1998' is the part number for this game...
I also have a Mattel Football (the original) that has little round blips instead of the dashes most of them have. Never seen that variation since, but comparing it to a dash version I found this on the chips: Dash version: B6100EA 7748 Dot version: B6100-15 8021 All the boards (including the LED board) had the same revision numbers, but the games appear to be roughly 3 years apart in age. Not sure if there would have been changes to the chip or not though.
Also compared a Bandai Missile Attack to a Battlestar Galactica, and they were identical. So that was definitely just a name change.
Funtronics Jacks and Mattel Basketball both have the dies glued directly to the PCB also. Jacks has a COP421, and I was able to photograph the die with no damage to the game, but you have to be extremely careful not to touch the bond wires. I also tracked down the traces on the PCB and dumped it electronically.
Basketball actually has 3 chip dies on the PCB. I haven't looked too closely at it yet.
I've heard about the round blips vs dashes, but I don't think the chips would be different. I've decapped one Football and I have another; I'll check the markings. It might just be that they standardized on the -nn style labeling.
I didn't realize that there was a clone of BSG.
I got a Unisonic 21 blackjack/calculator (AKA Jimmy the Greek model D3). As I was hoping, it has a Rockwell chip, so I think it contains the code in patent 4339134. The top of that code has a line that reads NAME A48(8), and the chips is labeled A4821CA. I've also got a Rockwell 63R calculator with a chip labeled A4802CA, so I'll compare the dies. I'm guessing they removed the advanced calculator features and replaced them with the blackjack code.