Skyjinks with Nabbit
From the Super Mario Wiki, the Mario encyclopedia
The mission occurs in a sky area. The objective is to catch Nabbit by jumping from cloud to cloud, making each one disappear so that Nabbit is cornered. If Mario and co. successfully catch Nabbit three times, the mission is completed, and are rewarded with the Balloon Blast Bros. Attack. If they get stranded or otherwise fall out of bounds three times, they get an instant "Too Bad!"
In the Hard Mode variant, Mario and co. must not leave behind a single cloud, as Nabbit will simply jump to any available cloud if cornered.
Hard Mode Objective
Names in other languages