Super Crown

The Super Crown is an upcoming item that is scheduled to make its debut in New Super Mario Bros. U Deluxe. The Super Crown can only be used by Toadette, and transforms her into Peachette, a Princess Peach lookalike that gives her the ability to Double Jump, and perform Peach's Floating Jump, controlling identically to the Flying Squirrel form (without the wall-clinging ability). Additionally, she automatically gets boosted if she falls into pits. The Super Crown's top appears to resemble the mushroom head of Toadette, being pink with white spots.

Other characters cannot grab the crown; instead, they go through it without getting rewarded.

Trivia

 * The concept of the Super Crown transforming Toadette into another character and granting her their abilities is similar to that of the caps in Super Mario 64 DS.