The blue tank in the Fire Balls game will serve as a tower destroyer at each level. His cannon shoots black balls that can destroy the tower to the ground. Click on the tank and it will start shooting, but at the same time make sure that the balls do not hit the fence in front of the tower. They can rotate around the base of the building and their number and size will increase from level to level. If you hit the fence, you will have to replay the level. The tower must be completely destroyed to reach the box with diamonds that is located on top in Fire Balls.
