The Spin Pipe is a Special Attack that appears in Mario & Luigi: Bowser's Inside Story and Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey.
When this attack is used, a giant Warp Pipe will appear on the screen and Mario and Luigi will get inside it. After, the player will only see the insides of the pipe when the enemy is hit correctly, forcing him/her to remember in which sides they are. After the pipe rises over an enemy the player has to press if Mario's side is about to hit the enemy, while the player has to press if Luigi's side is about to hit the enemy. If the player presses the wrong button or takes too much time, the attack will deal small damage, plus stopping it. To unlock it, the player has to complete Kuzzle's first puzzle, in which it will turn into the attack pieces required to unlock the attack.