Hey. I bought Big Brain Academy used, which means i didnt get a serial number.

I would like the cool nintendo keychain nintendo is giving out if you bought the game and our a my nintendo member.

So, if you have the game, check it out and get one!!!

If you dont plan on doing so, please tell me your serial number so that i may get one.

Thanks.

why would u want the keychain in the first plaec it sucks