Godzilla first appeared in the 1954 Japanese film Godzilla, and the creature's distinctive roar has since become one of cinema's most recognisable monster sounds. Over decades of films, games and parodies, that roar has come to signal something huge arriving. Streamers later adopted short, dramatic sounds for follower alerts, and this roar proved ideal because it is loud, instantly familiar and funny when used for a small on-screen event. It remains popular for alerts, edits and reaction clips where a big entrance is needed.