Marx is the final boss of the 1996 platformer Kirby Super Star, a round jester-like trickster who helps Kirby gather the stars before turning on him and laughing as his true plan unfolds. That betrayal cackle became a staple of remix culture, passed around on soundboard sites and dropped into edits as shorthand for gleeful villainy. Decades later it still shows up in gaming memes and reaction compilations, because few sounds sell a smug plot twist as instantly as this one.