You will need to shots to kill all the pigs for this stage. First launch your laser shooting bird from the bottom. Launch your lasers up, ideally you want to use the lasers to break both of the pigs inside the metal cage.
Power Activation Point
Activate the laser any time you have a clear shot to break the metal cages.
Launch your second big bird shot into the space as shown in the picture. Your goal for this shot is to push the metals and metals into the atmosphere to destroy all the pigs. It may take you a couple of tries before you can succeed. But once you do, you will claim the three star mastery.
Second Shot Result