This clip comes from Deltarune, the role-playing game created by Toby Fox. The battle start sound became recognizable among fans because it plays at the exact moment combat begins, giving scenes an immediate game encounter feel. Online, creators use it beyond the game to frame awkward conversations, mock rivalries and overdramatic reveals as if they were boss fights. Its staying power comes from being extremely short, clear and easy to place at the exact visual beat of a transition.