Navi debuted as Link's companion in The Legend of Zelda: Ocarina of Time, released for the Nintendo 64 in 1998. Her short voice lines, including 'Hey! Listen!' and 'Watch out!', were designed to guide players toward objectives and dangers. Because she interrupted so often, the lines became a running joke among fans and one of the most quoted parts of the game. Clips of her warnings later spread through forums, videos and soundboards, where the 'Watch out!' cue survives as a nostalgic shorthand for an obvious, unwanted alert.