Tamagotchi

Tamagotchi, the virtual pet, has three buttons: A, B and C that allow the user to select the options to feed or play with it. A tamagotchi can evolve into a wide range of "characters" depending on how well the user takes care of it. The name combines the Japanese word for egg "tamago" and the syllable "chi" which denotes affection, so it could be taken to mean "loveable egg".