This stage requires two shots for mastery. Your first shot is extremely important to clear out way for your second. Aim at the wooden block shown in the picture.
First Shot Result
With this shot, you will have to clear out at least the first four rows or even the fifth row of blocks. Without clearing the rows, you won’t be able to kill the rest of the pigs with your next launch.
Aim for the triangle piece that put together with the metal and ice.
Second Power Activation Point
Activate the power to destroy the triangle pieces.
Second Shot Result
The final pigs fall down to the floor and die, while you walk away being a three star master.