Luigi has long been Mario's taller, greener brother in Nintendo's games, and Luigi's Mansion gave him a starring role where his nervous charm and sudden bursts of confidence stood out. This quick Ah-ha captures the latter mood, the sound of him claiming something valuable rather than running from a ghost. Soundboard users and video editors picked it up because it is instantly recognisable, easy to drop into a short clip, and funnier than a plain success chime. It has stayed popular as a shorthand for a small, smug victory.