The hardest part for this stage is not to kill the birds, it’s actually to kill enough bones to obtain high enough score.
Launch your first shot at the weakest point holding up all the platforms.
Power Activation Point
Activate the dual jedi sword as you are about to hit the metal chains.
First Shot Result
All the platforms should be dead. Some of the platform should drop on the bone piles to deal more damage.
Use similar projectile as the first shot.
Second Power Activation Point
Activate the boomerang so that it kills all the birds currently on the ground.
Second Shot Result
All the birds currently on screen should be dead. The last jedi bird should show itself from the plane.
Aim your shot in a way that can deal last damage to the bone pile. You should have a straight shot to launch your missile against the last bird.
Third Power Activation Point
Activate the missile rocket anywhere as long as it can kill the last bird. Your rocket should help your main pig to deal additional damage.
Third Shot Result
All the birds are dead with three shots. You will obtain the final three star rating if you have destroyed enough bones in the stage.