If you buy Wii or DS games they usually come with serial numbers on pieces of paper inside the case, if you aren't using these numbers for yourself PM them to me because I'm a greedy fucker like that.
No, this is for personal gain so no ---------- Post added at 10:45 PM ---------- Previous post was at 10:43 PM ---------- Plus I'd have some angry buyers, although I'll gladly give you my Wii friend code (which in my opinion is annoying cause its like entering a fucking serial number by itself why can't we just have gamertags?).
He can claim Coins or Points or whatever for Club Nintendo and get prizes and stuff. https://club.nintendo.com/rewards.do;jsessionid=D49FF55607A78052E636797E6DBD56ED