Cloud City 4-38 is the thirty-eighth level of Cloud City. To pass this level with three stars, you should pop all pigs and score at least 97,000 points.
Send Leia into the compressor, using her tractor beam to pull at the tower on the right side of the level. Leia herself should take out all floating platform except the rightmost one. Repeat the shot, but this time Leia should reach the other platform. During her flight, pull at the iron block weight attached to the fan to clear the remaining pigs.