Great work. Love seeing home brew kits like this in action.
As others have said, if you could make a FPGA board that could play multiple vector games and interface with existing hardware, there would be a market for that.
He never did. I've been waiting since it was announced 10 or more years...
Pretty much everything made from the mid to late 80s through to the mid 90s, it was also used in many computers and TV game consoles of that era, as well as hardware applications like vending machines.