well, many people have talked about this. and to potty train them, i think u jus make them go potty in the toilet. when they havbe teh shaky lines around them, u go to the toilet looking icon and press it. then it will show an animation of the tama "doing the business" in the toilet. and i think they get used to it. i'm guessing, this will help the tama's go to the toilet by themselves, so u would have to pick up their waste much less than normal