Mario & Luigi: Brothership Walkthrough & Guides Wiki

Mario & Luigi: Brothership

How to Use Yoo Who Cannon Bros. Attack

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Mario and Luigi Brothership - Yoo Who Bros Attack.png

Yoo Who Cannon is a Bros. Attack used by Luigi in Mario & Luigi: Brothership. Read on to learn how to use Yoo Who Cannon and how to unlock it!

List of Contents

How to Use Yoo Who Cannon

Remember Which Barrel the Clones Went Into

Keep track of which barrels the Mario and Luigi clones each went into. To launch them, press A for Mario and B for Luigi. Each correct guess grants an additional shot.

Focus on remembering the position of either Mario or Luigi, then use process of elimination to figure out the other.

After successfully launching all clones, press X to fire them together as a giant ball, dealing tons of damage to all enemies!

Yoo Who Cannon Basic Info

Bros. Attack Overview
Yoo Who Cannon Challenge iconYoo Who Cannon
BP Cost 12
Target All Enemies
Description Remember who got in which barrel. If it's Mario, press A, if Luigi B. Finally, press X to launch.

How to Unlock Yoo Who Cannon

Unlocked During Your Journey to Wayaway Island

MLB Clockout Blow and Yoo Who Cannon.jpeg

Yoo Who Cannon, along with Clockout Blow, is unlocked at the start of Ampberry Device main quest, where you'll embark on a journey to Wayaway Island.

Yoo Who Cannon Challenges

Complete the Yoo Who Cannon Expert Challenge

No. Challenge Guide Rewards
10 Yoo Who Cannon Expert Challenge iconYoo Who Cannon Expert Get 30 EXCELLENTs with the Yoo Who Cannon Bros. Attack. ・Speed Bean x3
・Defense Bean x3

How to Unlock and Complete Every Challenge

Mario and Luigi: Brothership Related Guides

Mario and Luigi Brothership - List of All Bros Attacks Partial.png

List of All Bros. Attacks

Mario's Bros. Attacks

Red Shell Icon.pngRed Shell Hatch Me if You Can Icon.pngHatch Me if You Can Bomb Derby Icon.pngBomb Derby Clockout Blow Icon.pngClockout Blow Conductor Connector Icon.pngConductor Connector

Luigi's Bros. Attacks

Green Shell Icon.pngGreen Shell Zapperator Icon.pngZapperator Jump Helmet Icon.pngJump Helmet Yoo Who Cannon Icon.pngYoo Who Cannon Max-Mix Vortex Icon.pngMax-Mix Vortex

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Mario & Luigi: Brothership Walkthrough Team
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