Green Star 1:Catch the Big Rabbit. It can be very tricky to catch as it is extremely fast. There are Dash Panels scattered across the field to use to your advantage.
Green Star 2: On the right of the cliff, there is a Clear Pipe leading to a cloud platform with the second Green Star floating above it.
Green Star 3:Can only be acquired with Blue Toad. After making it to the top of the cliff, there is a Blue Toad Switch to the left, guarded by Conkdors. Press the switch and the final Green Star will appear on one of the moving cloud platforms.