The idea of Krazy Balls is simple. Using the tools available to you, and a dab of ink, get the balls from the container at the top of the screen into the bucket by drawing a path with your finger.
Each level has a different challenge, and the more advanced you get, the less ink you have to use. Watch out for the obstacles as they influence the balls in different ways. Keep your eyes out for Diamonds as they give you extra points.
Some of the levels are in zero gravity, and tilting your device will also help deliver the balls safely into the bucket.
Good luck, and enjoy.