This star requires some wit to pass. You will need two shots to kill all the pigs. First aim for the three chain pigs at the bottom right. You want to miss hitting the platform near you because you need your laser shots.
Power Activation Point
When you have a clear shot of the upper right platform, take it so that the platform tilts over.
First Shot Result
The falling pieces from the platform gets blown, and the piece triggers the bomb on the bottom left platform. Now you are ready to do your final shot for the three star.
Aim a little higher compared to your last shot. You want to get blown by the wind blower and kill the last hanging pig.
Second Power Activation Point
While in mid air, shoot out your lasers at the tilted platform. Make sure that the lasers bounce to kill the last standing pig at the top.
Second Shot Result
You will earn the much deserved three star mastery once you kill all the pigs with your two laser gun birds.