The Road Sign, as its name implies, is a round red and white sign attached to a metal pole. The sign bears the image of a crossed-out blue cat (or sometimes a black silhouette of a cat), which is similar to NoLegs's older design. A small question mark is visible to the left of the cat's head.
Its main asset is the massive boost it provides to Natalie's Accuracy, but it also provides substantial bonuses to her Evade and Magic Attack as it levels up. It also resists Death, Doom, and Stagger (which becomes a total immunity at max level), and may cast Spectrum as a counterattack.