Objective of the game is to shoot the balls in the basket, all you have to do is to load the ball in the catapult, drag and release it to shoot.
You have two choices here, "Timed shoot" and "Hot Shot".
In Timed Shoot, you have a limited time (as per your settings) with unlimited shots
In Hot Shot, you have a limited shots (as per your settings) with unlimited time.
Enjoy ! ?