Thank you. Looks like I overcomplicated things. I won't even use a vintage CPU, maybe a STM32, so that would be even easier. I guess the only complicated thing

Thank you. Looks like I overcomplicated things. I won't even use a vintage CPU, maybe a STM32, so that would be even easier. I guess the only complicated thing is if I want to invent "cartridges" so that involves some hardware. And yeah I agree those earlier discrete logic games are tough to copy. I think those games were made in hardware with little software.