Ao Oni is a Japanese indie horror game first released in 2008, in which a group of friends explore a mansion while being chased by a tall blue creature known as the Oni. Mika is one of those friends, and her scream has been lifted from gameplay and shared as a standalone clip on soundboards and in short videos. Because it is short, recognisable to horror fans and easy to drop over a scare, it continues to appear in gameplay reactions, Halloween edits and meme compilations long after the original game.