World Bowser-7: Grumblump Inferno – Super Mario 3D World Stars Guide

Our Grumblump Inferno stars guide details every Green Star in World Bowser-7 in our Super Mario 3D World stars walkthrough.

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

Green Stars Stamps Cat Shines


Green Star #1

When you see this Green Star, simply hop off and land on the platform underneath it.


Green Star #2

Before the final area with the twisting platform, jump through the Green Star Ring and collect all eight Green Coins to earn the Green Star.


Green Star #3

As the twisting platform is moving upright, take a small jump to snag the Green Star.


Stamp Location

After the Checkpoint Flag, ride down the twisting platform until you see a Hammer Bro. on a small platform. Jump on him to grab the Stamp and safely land.


Check out our World Bowser-A: Motley Bossblob’s Encore 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
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