I'm assuming the serial number would be located inside the cartridge??? I'm not going to open the case because i don't want to damage it. I can tell you on the front of the cartridge it says NUS-006(01) (USA) does that help?
its not inside. it should say TLZG somewhere on it. try the front, and back. if this is late run, it's not going to be bought by me, but if it's second or first one, i am bidding