Plane Mode

Plane Mode is one of Mario's transformations seen in Paper Mario: The Thousand-Year Door, and the first one obtained. Like his other origami-themed forms, it is granted to him in the form of a "curse" from one of the Black Chest Demons in the Rogueport Sewers.

Plane Mode allows Mario to morph into a. However, this move can only be activated when pressing on top of a plane panel. It is very similar to Boat Mode in this manner. As a paper plane, Mario will constantly float downward at a diagonal angle, and this slope may be leveled off by tilting in the opposite direction of Mario's descent. Flying in this manner, though, will result in the ride being slower, sometimes taken to the extreme of Mario dropping straight to the ground. If necessary, the player can end Mario's ride as a paper plane by pressing, resulting in Mario transforming back into his standard self.

Like the rest of the "cursed" transformations, there is a minigame in the Pianta Parlor based around this mode.