The style comes from the Sonic.exe creepypasta wave that started around 2011, when fan-made haunted-game stories and gameplay videos turned Sonic into a horror villain. Creators copied the formula across YouTube animations, fan games and meme edits, and the distorted, mocking laugh became a shorthand for a corrupted character. This particular upload is a user-made take on that trope rather than a ripped game asset. It survives because the laugh instantly signals danger and dark humor without needing any context.