1-up (or “1UP”, “1-UP”, sometimes simply Life or lives, etc.), pronounced "one up", is a term in console gaming that commonly refers to an item that gives the player an extra life to complete the game. In certain games, it is possible to receive multiple extra lives at once. When this happens, the number of extra lives obtained sometimes changes the notification from "1-up" to the number that reflects the total lives earned: Two lives would be "2-up", five lives would be "5-up", and so on. Games that don't do it this way often simply repeat the "1-up" notification in rapid succession concurrent with the number of lives awarded. Please add 1UP images from Kirby, Mario, and any thing else to the gallery.
The use of the term "1-up" to designate an extra life (attempt) first appeared in Super Mario Bros. where the player could gain an extra life in one of three ways: 1) Collect 100 coins 2) Find a green mushroom (later called a 1-up Mushroom) 3) Jump on eight consecutive enemies without touching anything else in the process, or use one enemy shell to kill eight consecutive enemies.