I may check on putting a NES pad in there and wiring it up. But a friend and I have played though it a couple times already and I don't see any trouble at all with this game no lag sound is never off or anything. Now the original Street Fighter seems to not have a good frame rate or something also Double Dragons is not great. But other than that I have had no problems with this running. I have played most of the popular ones like The Simpsons, X-Men, Super Mario Bros., even the later Street Fighters work fine just not the original. But I am thinking of just making it a 4 player 4 button so I have enough wires to hook all those up, that is only if I can coin-up 3rd and 4th players I will have to work on that part I guess if anyone knows please let me know. If I figure out how I will post it!