[quote name='Vinny']
I got a bootleg copy of Breath of Fire, which came with the box/manual too (also bootleg) from a US seller (also got Breath of Fire II from him which was fully legit). The game didn't work but he refunded after I used Nintendo's anti-piracy site to show him it was a fake.
EDIT* Just noticed the guy was from the UK.[/QUOTE]
I got the same exact type of auction on eBay for the same exact item. That's pretty damn funny and it was YEARS ago. I thought eBay would stop crap like this but it doesn't surprise me. I'm sure now my GBA games are 100% legit but I never really unscrewed all my gameboy classic and NES games, but with all the bootlegs out there I rarely buy any portable games unless the seller has 100% feedback or is selling very few portable games in general, ie i bought a Contra 4 DS copy recently from a guy that has never sold a DS game before, granted he could have purchased it off someone else.
Oh there is also "fake" NES games on eBay, so be careful.