Draw lines and the ball will land on them. The ball bounces off the edge. It acts a bit weird on the lines you draw! ;) Change the physics settings using the sliders.A sensible gravity amount would be between 1-20, and a sensible air resistance amount would be between 1-9
Thanks to Perfect Ball Physicis (Title spelling wrong) by @DogDestroyer; I used your project's scripts and added a bit of my own touches! :) I think I might make a game out of this.