the way I get my Tama to play games if she doesn't want to is to give her a snack. Apparantly they can't play if they weigh too little, so you have to get their weight up. Give it a few snacks and you'll get a couple of games out of it. Don't worry about it being over-weight, they shed a pound or two when they play a game. It will get tooth ache after too many snacks though, so be quick to give it medicine!