The Mario game over sound comes from Nintendo's long running Super Mario games, where it plays when the player runs out of chances or fails a run. Over time, the cue spread far beyond gameplay and became a shorthand online for losing, embarrassment and sudden failure. Its staying power comes from how quickly people recognise it, even in a very short clip. In meme edits, it often fills the same role as SpongeBob Fail, marking a moment when everything goes wrong.