The sound comes from Yakuza Kiwami, the remake of the first Yakuza game, where the Majima Everywhere system lets Goro Majima ambush Kazuma Kiryu across Kamurocho in increasingly absurd disguises and situations. The alert became shorthand among fans for those surprise encounters, because hearing it meant a fight could start anywhere, from a street corner to inside a shop. Clips and edits later carried the cue beyond the game, using it whenever someone famous for showing up uninvited makes an entrance that everyone else immediately recognises as trouble.