Combinations of alphanumeric characters used with a device modifying a video game’s programming, specifically targeting the Nintendo Entertainment System (NES) game Super Mario Bros. 3, allowing players to alter aspects of gameplay. For example, one such combination might grant invincibility or infinite lives within the game.
These codes provided players a novel avenue to experience the game beyond its intended parameters. The capacity to bypass difficulty or experiment with altered mechanics extended the lifespan and replayability of Super Mario Bros. 3, contributing significantly to its lasting popularity. This functionality enabled exploration of hidden features and expedited progression for those seeking a less challenging experience.