Maybe it turned into a petite family from extreme hunger?
( Ninja famiy: EXTREME NEGLECTED HAPINESS)
( Large family: EXTREME OVERFEED)
( Petite family: EXTREME HUNGER )
hope that helped!
It was bad care family.. Like your tamagotchi V.5 will turn into a petite family form extreme hunger, it will turn into a large family from extreme overfeed and it will turn into ninja family from neglected happiness!
So keep your family well ballanced... :(