The sound comes from Metal Gear Solid, released by Konami in 1998 for PlayStation and directed by Hideo Kojima. In the stealth gameplay, guards enter an alert phase when they spot Solid Snake, triggering the sting and the red exclamation mark overhead. As gameplay clips and parodies spread on forums, YouTube, and streaming sites, the noise escaped the game and became shorthand for being discovered. Its brevity and tension keep it popular for edits far beyond gaming audiences.