Jack-O Valentine is a character in Arc System Works' long-running Guilty Gear fighting game series, known for her playful, theatrical style and her pumpkin-themed companion. Her victory sting is the brief musical cue heard when she wins a round, and fans have clipped it from gameplay for use outside matches. It spread through fighting game montages, reaction videos and meme edits, where a two-second win sound works better than a full theme. It remains popular because it instantly signals a win to Guilty Gear fans without needing any dialogue.