Super Acorn

The Super Acorn is an item in New Super Mario Bros. U. The item resembles an acorn with red and yellow stripes on top and a red face with eyes on the bottom. It transforms anybody who touches it into a flying squirrel form, gaining puffy overalls, a grayish shirt and shoes, and a large cap featuring two squirrel ears and a beige brim. Characters in this form also receive a tail and two gray membranes underneath the arms. They also gain the ability to lightly glide in a similar way to the raccoon or cape forms as well as the ability to cling to walls and air jump while gliding. This item seems to grow from a large Acorn Tree in Acorn Plains.

There are Super Acorns rolling around in some parts of the world map, where they can be collected instantly and stored into the inventory.