Robbin is a pet dog for you phone.
You can …
… play ball with him.
… feed him.
… take him for walks.
… but don’t for get to pick up his poop.
And above all don’t ignore or neglect him or he will die.
Robbin is a virtual dog. He uses most of the sensors in your phone. In the outdoor scene you move your phone to take him for a walk. He will chase the ball, bring it back to you and more.