They will have a "Runaway" tag on their icon, and if you attempt to play with them, the game will scold you for abusing or neglecting them and remind you to take better care of your Petz in the future.
#DOLPHIN PETZ DOGZ 2 FISHING SERIES#
The original series provides examples of: The Catz game also comes with the (already spayed/neutered, so no freakish hybrids unless you do a bit of tweaking) Bunniez breed, and Dogz players get Pigz.