Yoo Who Cannon

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Yoo Who Cannon
Yoo Who Cannon Sprite.png MLBISBJJYooWhoCannon.png
BP/SP/CP Needed
BP/SP/CP Needed (Remake) 14­
Location Toad Town­
First Appearance Mario & Luigi: Bowser's Inside Story (2009
Latest Appearance Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey (2018)
How to use the Yoo Who Cannon

Yoo Who Cannon is a Special Attack that appears in Mario & Luigi: Bowser's Inside Story and Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey. Its name is a pun on the interjection "yoohoo" and the word "who".

When using this attack, Mario and Luigi will briefly appear in eight Barrel Cannons on screen; the player has to remember where they are. After a barrel rises, the player has to press the A Button or B Button button, depending on which brother was sitting there but, the player has to press that button before the fuse reaches the barrel to damage the enemy. If the wrong button is pressed or if the player takes too long, the other barrels will be destroyed, and it will do less damage. It costs seven SP to use this attack. After teaching Mario how to use Blue Shells, the Koopa Paratroopa Trio will give Mario and Luigi the 10 Attack Pieces required to use this move.

It, Green Shell, Mighty Meteor and Snack Basket are the only Special Attacks that are mandatory to complete the game.

This move is available for use in the Challenge Node. It becomes trickier when remembering the order becomes shorter.

Yoo Who Cannon was originally going to appear in Mario & Luigi: Dream Team, but was scrapped from the final version.[1]

In the remake, Yoo Who Cannons now aim at the enemy to hit upon being used.


Names in other languages[edit]

Language Name Meaning
Japanese ぶんしんタルたいほう
Bunshin Taru Taihou
Bunshin Barrel Cannon. Bunshin is an expression meaning "to divide and advance."
Spanish (NOA) Cañón Yuju Yoo-hoo Cannon
Spanish (NOE) Barrilazo Humano Human Barrel Hit (azo is suffix for hitting something.)
French (NOA) Canon Ya-hou Ya-hoo Cannon
French (NOE) Barils cloneurs Cloning Kegs
German Fass-Geballer Barrel-Bombardment
Italian BarilCannone "Barile" (Barrel),"Cannone" (Cannon)