Last night I reactivated my 9 year old original(US) Tamagatchi.
I already have a V3 version that has been going for a couple of weeks now.
The original one is very slow, and LOUD, I'm surprised how loud the beeps are. The baby is very weird little black thing that keeps to the bottom of the screen. The only game is a game that you have to guess which way the tama will turn. You have 5 tries and if you get less than 3 right it gets upset.
I also started my old GigaPet Alien last week and had forgotten how demanding the little guy is. You have to be constantly feeding it and watching the food and happiness levels and if the disipline level drops below 50 you have to shock the little guy.