Lei Wulong is a long-running Tekken fighter, a Hong Kong detective whose drunken boxing style and energetic voice lines have made him a recognisable part of the series. Short shouts like this haiyaa are part of his in-game fighting calls, the kind of vocal burst players hear again and again during matches. Clips of those calls have circulated on soundboards and in fighting game edits, where a single short shout can signal an attack, a joke or a dramatic entrance without needing any dialogue.