Luigi first appeared as Mario's younger brother in Mario Bros. in 1983 and became a playable racer in Mario Kart 64, released for the Nintendo 64 in 1996 in Japan and 1997 internationally. Each racer in that game had short voiced reactions used during selection and racing, and those clips were later ripped and shared widely online. Luigi's higher, more timid delivery set him apart from Mario's cast and made his sounds especially reusable. Fans still circulate them in edits, streams and soundboards celebrating classic Nintendo racing.