Yoo Who Cannon

Yoo Who Cannon is an Attack Piece that appears in Mario & Luigi: Bowser's Inside Story.

When using this attack, Mario and Luigis will briefly appear in eight barrels on screen; the player has to remember where they are. After a barrel rises, the player has to press the "A" or "B" button, depending on which brother was sitting there. If wrong button is pressed, the attack immediately fails. This costs seven SP to use this attack.