Our Pipeline Boom Lagoon stars guide details every Green Star in World Flower-7 in our Super Mario 3D World stars walkthrough.

World Flower-7 contains three Green Stars to collect. If you’re looking for other Green Stars or stamps from World Flower, as well as any Cat Shines from Bowser’s Fury, head on over to these pages:

Green Star #1

Cannon Block required! In the first underwater section, swim along with your Cannon Block and tear through a brick wall blocking the Green Star on the right.

Green Star #2

In the second area, swim up past the spiked blocks and enter a small room with the second Green Star.

Green Star #3

Cannon Block required! Break through the brick blocks in the area with the sunken ship, then swim through the Green Star Ring and collect all eight Green Coins before the time runs out to earn a Green Star.

Check out our World Flower-8: Blast Block Skyway guide for green star and stamp locations for the next level.

Use the links below to jump to different sections of our guide.

Super Mario 3D World + Bowser’s Fury (Guide Hub)
	Green Stars Walkthrough
W1	W2	W3	W4
W5	W6	W?	W?
W?	W?	W?	W?
	Stamps		Cat Shines