Nina Ottosson Dog Games and puzzles are great for dogs of all ages, breeds and sizes. This level 3 dog game is especially recommended for more challenging play, but can be used with dogs of all play levels. HOW TO PLAY: With bones in unlocked position, open drawers and drop in treats or kibble. Close drawers and lock bones. Let the games begin! Place the game on the floor and encourage your pet to seek treats. Dogs are smarter than you think. Sometimes we just need to teach them! Leave bones unlocked and a drawer or two open to gain your dog´s interest.