This sound comes from the Metal Slug series, specifically the rocket launcher effect heard in Metal Slug 6 and Metal Slug 7. Those games continued the franchise's distinctive arcade audio style, with exaggerated weapon sounds that stayed memorable even in short clips. Online, the effect circulates in game soundboards, retro compilations, and meme edits because it is instantly readable as a classic 2D shooter weapon cue. It still gets used by creators who want a vintage arcade feel without needing a long explosion sound.