Where is the green juggling ball in escape the amusement park

There's a code on the garbage can by the porta-potties, and it says "35-0-45." Remember that code.
Go to the Ferris wheel. You will see a blue box. Click on it. After you have unlocked the key to stop the Ferris wheel, count the side of the shapes:
triangle - 3 side
star - 5 sides
circle - 0 sides
square - 4 sides
star - 5 sides
That should unlock it. You will then see the green ball.