Yeah, it looked real to me too. This has me questioning everything now. I took apart a couple of my rare games and the green circuit boards inside the cart say Nintendo on them. Are there other things to look for? Not really looking forward to opening every single one of my games, but if that's the only sure way to know for certain I suppose I would.
I try to avoid Hong Kong, Thailand, and China while shopping online to lessen chance of getting ripped, but I know a lot of that fake junk is still floating around pretty much everywhere. It kind of sucks having to look out for this shit.