Peanut playing

Peanut is a 6 -eek old feral kitten we adopted in a vet's office from a woman who didn't know how to take care of him. She was bottle feeding him soy milk! We volunteered to take him and he's doing well. We took him to a vet and he's eating proper food and on medicine to deworm him of any possible parasites. We trying to litter train him now.