Death Star 2 6-18 is the eighteenth level of Death Star 2. To pass this level with three stars, you should pop all pigs and score at least 66,000 points.
Launch Luke into the bottom force waves. Time his release so that you can deflect the beams coming from the cannon. Ideally he will continue on and release the wheel hanging from the chain on the far right. (Note: You should not hit the laser blasts or you won't reach the wheel.)