Bowser has been Mario's main villain since Super Mario Bros. in 1985, and his roars, growls and grunts are a core part of his character in Nintendo's games. Short vocal clips like this one were later ripped and shared through fan sound packs, including collections labelled SMG4 Sounds, named after the long-running Mario parody web series. On soundboards and in fan edits the grunt became a reusable reaction noise, kept alive because listeners instantly recognise the voice and associate it with a bulky villain straining or losing his temper.