Cozette's Decision is a side quest in Mario & Luigi: Brothership that can be started on Shipshape Island after completing Fortress Zokket and Skorcheen Island. Read on for a full walkthrough of Cozette's Decision, including its location, unlock requirements, and rewards.

Cozette's Decision Location and Unlock Requirements

Cozette's Decision Side Quest
Cozette feels responsible for what's happened and is seemingly planning to fix it alone. Can you work together to find a solution? This is a limited-time quest
Unlock Requirements	Complete Fortress Zokket
Quest Start Location	Shipshape Island

Limited-Time Special Quest

Cozette's Decision is a special quest that must be completed before a certain point in the story. Once this quest is unlocked, it is highly recommended to do it immediately before progressing the main story any further.

Limited-time quests will disappear upon progressing the story, and you will be unable to complete them for the rest of your playthrough.

Unlocked After Completing Fortress Zokket

After you complete Fortress Zokket, you will be able to find this side quest on Shipshape Island. Talk to Connie at Shipshape Island in order to start Cozette's Decision.

If this side quest doesn’t appear for you after you return to Shipshape Island from Fortress Zokket, you may need to progress the story a little bit.

Story Walkthrough

Recommended to Be Level 41

This side quest involves defeating enemies to complete it. It is recommended to have Mario and Luigi to be at least level 41 to easily complete this quest.

Get the Bond of Chilliam and Burnadette

Cozette’s Decision unlocks after finding Cilliam and Burnadette on Skorcheen Island and getting their bond.

Cozette's Decision Walkthrough

Cozette's Decision Quest Objectives
Talk to Connie on Shipshape Island Travel to Gulchrock Great Lighthouse Island Enter the Great Lighthouse Battle the Glohm Zok Troopers Head to the Roof Top and Speak with Cozette

Talk to Connie on Shipshape Island

Talk to Connie at the center of Shipshape Island to start the quest. She’ll ask you to find out where Cozette has gone.

Travel to Gulchrock Great Lighthouse Island

Make your way to Gulchrock Great Lighthouse Island. To speed up, press X to sail faster on the Ocean Map, or, if you’re traveling from a greater distance, use the Technikki Engine by pressing Y to jump directly to the island's current.

Once Shipshape Island is near Gulchrock Great Lighthouse Island, use the Big Cannon on the right side of the island to launch there.

Enter the Great Lighthouse

Upon landing, a cutscene will show Cozette entering the Great Lighthouse. Follow her inside to continue the quest.

Gulchrock Great Lighthouse Island Location Guide

Battle the Glohm Zok Troopers

Once inside, interact with the elevator to trigger a battle with Glohm Zok Troopers. Use Bros. Attacks that target multiple enemies for a quicker victory!

Be cautious when battling Glohm Enemies, as their attacks can inflict the Glohm status ailment. Use an Ampberry to cure yourself from the ailment or take a 50% chance with a Refreshing Herb.

List of All Enemies

Head to the Roof Top and Speak with Cozette

After defeating the Glohm Zok Troopers, take the elevator to the Roof Top. There, find Cozette on the upper deck and speak with her. This will trigger a lengthy cutscene, after which the quest will be completed!

Cozette's Decision Rewards

Speed Bean and Stache Bean

Reward	Description
Speed Bean x	Adds 1 to SPEED.
Stache Bean x	Adds 1 to STACHE.

After completing Cozette's Decision, Cozette will reward you with a Speed Bean and Stache Bean.

Mario & Luigi: Brothership Related Guides

All Side Quest Locations

Lushgreen Sea Side Quests

Coming Home	The Hammer Fan
An Invitation to the Spa	Arc's Secret
Craft a First-Round Belt	Craft a Luck Charm
Craft Some Battle-Ready Gloves	Craft Some Battle-Wary Gloves
Spiralia's New Creation	A Mother's Worries
Investigate the Abductions!	-

Color-Full Sea Side Quests

Zokket's Schemes	Back to IDLE's Roots
Little Lost Toad	A Vision in Pink
Craft a Repeater Belt	Craft Some Roulette Gloves
It's Dorrie!	More Than One Code
Stepped into a Slump	Craft Some Groove Boots
Letter from a Drifting Island	Monster Mania: Level 1
The Left-Behind Toad	The Courier

Brrrning Sea Side Quests

Ultra-Sweet, Super-Rich Cake	The Runaway Son
Guardian Spirit	Monster Mania: Level 2
Toad in the Sand	Frostbitten Toads
Fear of Glohm	A Big Debate
Craft Some Risk-Reward Gloves	Gorumbla Gone Good
Glohm Gobblick	-

Gulchrock Sea Side Quests

Craft Some Validation Gloves	The Fossil and the Bones
Leyden's Piscine PR Plans	Separated
Technikki's Past	A Dear Friend
The Empty Nests	Missing Ring
Toads Undercover	Warms You Inside and Out
Feelings of Dread	Glohm Sharpcask

Stormstar Sea

The Lonely Great Conductor	Treasure-Hunting Brothers
How's Bowser's Health?	Dueling Geniuses
Craft Some Capricious Gloves	Monster Mania: Level 3
Monster Mania: Level 4	Monster Mania: Level 5
Glohm Pipegunk	Cozette's Decision
Craft Some Amped Gloves	-