Omega Flowey is the monstrous final boss form of Flowey in Undertale, the 2015 indie game by Toby Fox. Sounds tied to that fight spread online through gameplay uploads, meme edits, and fan videos because the encounter is one of the game's most intense and visually unsettling moments. The alarm-like cue stays popular because it instantly communicates boss battle panic and corrupted game energy. It is often used in the same kind of dramatic warning role as a danger alarm sound effect meme.