[Rombus]

think it’s a lot less work than you are thinking. What about this:
The game grid is setup with the goals, each goal has 4 buttons (Red/Blue top Red/Blue bottom) Top tetras would be easy, each button press adds another of that color to it, and since you can’t legally remove them, no need to worry about removal. Underneath would be a bit more complicated, but not too complex. You could write a hardware or software solution that would instantly take into account rows.
Then a section for the penalties
With 2 score keepers, it could be done very easily