On the version 2 package, I think it says version 2 in the upper right hand corner. If I am wrong, than the version 2 package says something like, "New Games! Twice as many characters!" If you still aren't sure, then look on the back of the package . . . if it is a version 2, it should have a picture of a tamagotchi shopkeeper on it. If you are ordering it online, then they should tell you what version it is. Keep looking, it should eventually tell you! I hope I helped . . . best of luck buying your new tama. No matter what version you get, I'm sure you will love it!
~Generation12