Drill Mushroom

The Drill Mushroom is a power-up item that first appeared in Super Mario Bros. Wonder. It takes the form of a mushroom with a gray drill and a red base in place of the cap. Upon picking it up, it will turn the user into their Drill form, giving them the ability to drill through the ground and ceiling along with being able to defeat enemies from below similar to the Spiny Shell helmet from Super Mario Maker.

When a character picks up a Drill Mushroom, a drill appears on top of their head; it replaces Mario and Luigi's caps, and Peach and Daisy's crowns. Their clothes become dark gray with details keeping the original character color. For instance, Mario's shirt turns gray and his overalls red, while Peach's dress turns dark gray with lighter diagonal stripes, while the panniers, collar and hem stay pink.

Trivia

 * On Nintendo's website, the file name for the image of the Drill Mushroom is "drill-flower".