I just received this in the mail today and until opening it was very happy. The game has gone up a fair bit in price recently but I noticed but I found this for about 5000 yen on Amazon Japan. I trusted it because sometimes sellers put up items cheaper than the lowest without really looking whether the games have cases/instructions etc. I've been lucky a few times this way. Anyway, this still seemed to good to be true and I'm thinking it is.
http://imgur.com/na2gcEd
http://imgur.com/Cltp2Zx
I looked on ebay before coming here and none of the copies for sale there have the NTSC mark in the top right corner and it isn't a sticker but part of the label on this. Also the underside of the cover feels papery but the front is glossy. The manual looks complete but the colours look washed out as they do on the cartridge. That's something I notice a lot on reprints. The box itself and the actual cartridge feel normal. I looked at quite a few of my other games to make sure and they all have higher quality covers, manuals and just look better. So I'm concluding it is a fake but if possible, I'd like advice from anyone who owns or has seen a normal copy. If it is I can still return it and my search will continue.
The cover itself is the same as this one which has me suspecting it has been printed.
http://www.thecoverproject.net/view.php?cover_id=7118
EDIT:
Forgot to mention that the game does work and is Bare Knuckle 3. Something else I noticed is the cartridge feels lighter.
Thanks in advance!