This is a pretty straight forward stage to obtain the three star mastery. Aim below the planet using the path shown in the picture.
Power Activation Point
Activate your sword after you have hit the meteor, you want to destroy the blocks holding up the pig. The meteor then bounce out and kill the outer space pig.
First Shot Result
After your shot, your first launch result should look something like the picture.
Aim towards the upper atmosphere of the planet.
Second Power Activation Point
Shoot out your laser when you have the shot to kill the green armor pig.
Second Shot Result
After the green armor pig is out, all the meteors fall down to destroy all the pigs. You will then earn your three star mastery rating.