The Courier is a side quest in Mario & Luigi: Brothership that can be started on Rumbla Island after completing the Great Lighthouse Island in the Color-full Sea. Read on for a full walkthrough of The Courier, including its location, unlock requirements, and rewards.

The Courier Location and Unlock Requirements

The Courier Side Quest
Apparently there is an easy job on Rumbla Island with a big payout for just delivering something. Sounds extremely legit!
Unlock Requirements	Complete Great Lighthouse Island (Color-Full Sea)
Quest Start Location	Rumbla Island

Unlocked After Completing Great Lighthouse Island (Color-Full Sea)

After you complete Great Lighthouse Island (Color-Full Sea), you will be able to find this side quest on Rumbla Island. Talk to the Green Concordian near the Plaza in order to start The Courier.

If this side quest doesn’t appear for you after you return to Shipshape Island from Great Lighthouse Island (Color-Full Sea), you may need to progress the story a little bit.

Story Walkthrough

Talk to the NPC in Rumbla Island

To start the quest, revisit Rumbla Island and head to the Island Plaza. From there, head north to Wilma's house and find the NPC outside her yard.

Talk to the NPC and they will give you a suspicious package to deliver to a building in Lottacoins Island. What exactly is going on here?

Rumbla Island Walkthrough Guide

The Courier Walkthrough

The Courier Quest Objectives
Look for the Address in Lottacoins Island Find the Boss on the Third Floor Go to the Boss's Room

Look for the Address in Lottacoins Island

If you check your map while on Lottacoins Island, you'll notice that the side quest marker isn't even there. It's kind of annoying but don't throw the package into the sea just yet!

Enter the northwest building and talk to the receptionists. They will tell you that the package could be for their boss, who is at the third floor of the building watering plants.

Lottacoins Island Location Guide

Find the Boss on the Third Floor

Use the stairs next to them up to the third floor and try to talk to the boss about the package. Instead of receiving a response, the boss will rush back down.

Go to the Boss's Room

Ask the receptionists again where their boss went and they will suggest heading to the boss's room. Go up the stairs next to the building entrance then take the east exit upstairs.

At the end of this bridge is the boss's room. Give him the mystery package and watch the cutscenes to complete the quest! Claim your reward from the assistant and forget this quest ever happened.

The Courier Rewards

Gold Medallion

Reward	Description
Gold Medallion x1	Can be sold for a high price. It makes you more likely to be targeted by enemies in battle. BP +2; JUMP +2; HAMMER +2; DEF +2; SPEED +2; STACHE +2

You'll get the Gold Medallion as a reward for completing this side quest. This accessory will be given to you by the assistant after returning to the boss's office.

List of Accessories

Mario & Luigi: Brothership Related Guides

All Side Quest Locations

Lushgreen Sea Side Quests

Color-Full Sea Side Quests

Brrrning Sea Side Quests

Gulchrock Sea Side Quests

Stormstar Sea