With your first shot, aim for the flying pig.
Power Activation Point
Immediately tap your power up to pull on the metal blocks from the back. You will have to do it quickly or else the caged pig blocks your way.
First Shot Result
The flying pig starts flying and pull off the entire car with it down the cliff. Your pulling power weakens the house in the back.
Simply aim towards the chained platforms. You need a clear shot for your lasers to cut through all the metals.
Second Power Activation Point
Shoot your lasers when you have a clear clean shot.
Second Shot Result
The metal platforms fall and kill off all the pigs, you will then be rewarded with the three star mastery.