Cloud City 4-22 is the twenty-second level of Cloud City. To pass this level with three stars, you should pop all pigs and score at least 51,000 points.
Send Lando high, shooting laser blasts through the chains and into the triangular block on the far-right. Launch Lando when the fan is moving left-to-right thus the falling black TNT will hit the structure. The laser blast should ricochet into the TNTs below for more points.