Sonic.exe began as a creepypasta story about a haunted Sonic the Hedgehog game, written and shared online in the early 2010s, and it grew into fan games, animations and YouTube videos. The character is a demonic, red-eyed version of Sonic, and his distorted screams became a shorthand for corrupted or haunted-game horror. As clips from the games and edits spread on YouTube and TikTok, the scream was lifted out of context and reused as a standalone jumpscare sound. It remains popular because it is recognisable to horror and gaming audiences, even in a clip lasting less than a second.