Isn't this kinda in the wrong forum? I wouldn't consider a V1 an ancestor. But anyways, a v1 is the first tamagotchi with the infrared. It has less characters than the other versions, no money or shops, two games, dance and jump, (different to the V4 game dance and V2 game jump) and you can only get items via connecting with another v1, and even so it's just random. The different characters can be obtained solely by taking care of it in different ways, so in part it is more compicated than a v4. So basicaly, it's just like a v3, but stripped down to the bare minimum of features. But of course, that's not saying that they're bad, just different.