Click the green flag, then click the soccer ball and try to drag it to the blue shape in the lower right corner using the green lines without touching the light blue background. Once you get to the end click the blue shape to prove you won. If you want to try again click the red stop sign, then the up arrow, and after the green flag, click the soccer ball and start all over.
Thanks to @RavenclawKeeper for being the official tester.
