I have a few Tamagotchi's to sell, found while cleaning up kids toys (now adults LOL).  I am concerned not  all may be genuine due to some slight differences, but am aware this is not uncommon depending on regions they originated from or were destined for.  I have spent hours pouring through relevant sites but haven't yet got to anything definitive!  I'm aware there are very good fakes around and would never want to advertise something that it is not. 

I was thinking of just stating Tamagotchi and refer potential buyers to the pictures as part of description, ensuring I take any of imprints, etc.  I figure collectors would know and bid/not bid accordingly.  Any ideas please?

Thanks in advance.