Tube creature

From the Super Mario Wiki

The title of this article is conjectural; an official name for the article's subject has not been found, so it has been given a fitting title by the editors. If an official name appears that is not from the English Super Mario Bros. Encyclopedia, it is requested that the article should be moved to the correct name.

A tube creature in the Experimental World

Tube creatures are large, flying oblong shapes that appear in the Experimental World in Mario Artist: Polygon Studio. When approached by the player, a warning sign appears on screen and the creature slowly moves toward the player's creation while making an odd, guttural mumbling sound. If the creature makes contact, it will eat one of the creation's parts, preventing the player from using it until the next time they enter the Experimental World.