The title of this article is official, but it comes from a non-English source. If an official name from an English source is found that is not from the English Super Mario Bros. Encyclopedia, the article should be moved to its appropriate title.
Nobiiru are living thermometers found in Wario Land 3. They sit horizontally within walls with only their eyes visible, and regularly fill with mercury and shoot outwards, extending spikes while doing so. As such, they typically appear in narrow vertical climbing sections. Wario must time his climbing to pass them.