Aim on top of the two helicopters. Do not go full power with the shot. You want Yoda to go at an angle to hit the diamond metal / wooden block on the second tower to the right.
Power Activation Point
Activate your Yoda bird power after you pass the helicopters.
First Shot Result
Yoda should cut through the diamond metal / wooden piece to knock down the right most tower. The piece would fall to kill the black pig. Yoda then bounces back to touch one of the helicopters, setting it off and destroying it. Triggering the TNT bomb to kill all of the left over pigs for the three star master.