At first glance they are ordinary Balls, there are thousands of them in every city. But they can transform into... BOXES! Other balls call them WereBoxes.
A physics based puzzler, try to complete all twenty levels.
Remove all red objects from the screen.
Click a box to transform it into a ball, click the ball to transform it back into a box.
If you're stuck and really need help, take a look here: solution video.
