Super Acorn
Squrill nut
Artwork of the Super Acorn from New Super Mario Bros. U.
First Game New Super Mario Bros. U (2012)
Appearances New Super Mario Bros. U
New Super Luigi U
Type Power-up
Effects Grants Mario his Flying Squirrel form.

The Super Acorn, also known as the Acorn Mushroom is a type of power-up Mushroom found in New Super Mario Bros. U and New Super Luigi U. It turns any player, except Nabbit, into a Flying Squirrel. There is also a variation of the Super Acorn with a P on it. It can only be acquired when Mario, Luigi, or one of the two Toads capture Nabbit. Then, a Toad rewards the player.