Blast that pest!

To fix the ball out error: in the 'act' method of the Ball class, switch the order of the 'checkOut' and 'checkFly' calls. Also, in the 'checkOut' method, remove the 'gameOver' call. Will reply about counter shortly.

In the ball class, in the 'checkFly' method, add the following line inside the if(fly != null) block: ((Counter)world.getObjects(Counter.class).get(0)).add(5);

You may want to add a counter in your world class to track the number of new balls created and if it reaches a certain value, then 'gameOver'.