Luigi is Mario's younger brother and a staple of Nintendo's Super Mario series since the 1983 arcade game Mario Bros. Short voice clips of his cheerful laugh have appeared across decades of Mario titles, from kart racers to Luigi's Mansion, making the character's giggle instantly recognisable to gamers. Clips like this 'ha ha' circulate on soundboards and in meme edits on YouTube and TikTok, where creators use them as quick comedic punctuation. Its staying power comes from Nintendo nostalgia packed into less than a second of audio.