hey man, i think i may have a trade for twin cobra, but i also have an eswat, double dragon, and nba jam pcbs. I havent posted them yet because i havent had time to test them. but the guy I got the from (i received them in a lot so I could buy a paperboy) said that the eswat and double dragon both work. the nba jam he got working but had some sort of error... If you are interested in any of those let me know.