Missnote 2 comes from Friday Night Funkin', the open-source rhythm game released on Newgrounds in 2020 by Cameron Taylor, known as ninjamuffin99. Each of the game's miss note sounds plays when a player fails to hit an arrow in time, breaking their combo with an intentionally unpleasant buzz. As the game's modding scene and meme culture exploded on YouTube and TikTok, the miss sounds escaped the game and became shorthand for any on-screen blunder, joining the ranks of iconic game fail sounds like the Roblox oof.