A P-Acorn is a item in New Super Mario Bros. U. It transforms its user into P Flying Squirrel Mario with the ability to fly an unlimited number of times for the entire stage, similar to the P-Wing from previous games. In Mario's case, his hat and shirt becomes white; his hat has a large, red "P" instead of his "M" emblem; and he also appears to have a sheen around him. The P-Acorn's power will perish if the player completes a level without losing the power-up, causing the player to change back to the regular flying squirrel form. However, the player will not lose the power-up if the course is completed via capturing Nabbit.
To obtain a P-Acorn, the player must either capture Nabbit and return his sack to a Toad, or after defeating Bowser, if the player saves their profile then opens it again, a P-Acorn will appear instead of a Super Acorn (it also seems to appear at other times). A P-Acorn can appear sometimes on the main map in the place of a Super Acorn. Its appearance is similar to the Super Acorn, but has pale white and gray stripes on the top, scarlet bottom, and it has a large, red "P" imprinted on the top. Another way to obtain a P-Acorn, with a very slim chance of doing so, is that sometimes, in the middle of Tilted Tunnel and Crushing Cogs Tower on the world map, it is either this power-up or the Super Acorn (which is more common) that appears.
It should also be noted that the player would have not been able to make a Miiverse post if a level was completed with this power-up, even if the level was cleared without taking any damage. This would have been the same if the level was completed while playing as Nabbit in New Super Luigi U.
The sound effect heard when flying through the air in this form is the same one heard when flying as Raccoon Mario.
New Super Mario Bros. U Deluxe
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