Berti is the a playful little puppy--well, he's not a puppy anymore, but he is still playful and my favorite dog in the entire world. Berti's favorite thing to do is play with his ball. It is white with rainbow colored bones on it. He likes to squeak it and then throw it into the air and try to catch it. Most of the time he is unsuccessful, but it is really fun to watch. Overall, Berti is an adorable puppy who can make you feel better when you are sad.