I know that out there are some original Irem M92 PCBs which have a lighter green color compared with their japanese counterparts that even have a Irem sticker on the corner of the A board; I also have seen some games like Undercover Cops Alpha Renewal, In the Hunt, Risky Challenge and Baseball Batman which don't have the sticker but have some Nanao components on both boards, but yesterday I've seen a Korean In the Hunt PCB which its A board doesn't have the Irem sticker and have some Nanao components, but the B board have a legend marked on that says "DED" "Dong-A Electro Desing Corp" and also doesn't have Nanao components. I think this PCB is a bootleg but I'm not sure; thats why I'm asking you for help.
I've inserted some pics of both sides of the PCB so you can see what I mean; thanks in advance for the help that you could provide on this topic.