Tamagotchi 3 Connexions. More intelligent, plus networking via infrared? Oh good grief! £12.95/$24.10.
More importantly, Tamagotchi Connexions can interact with fellow pets over a nifty infrared connection. This means your pets can exchange gifts, play games, ‘court’ each other, get married and even have babies! The level of interaction is truly impressive – if you hold two of the pets near each other, one will leap into the other screen and give flowers. Altogether now, aahh.