Lancer is a character introduced in Chapter 1 of Deltarune, released in 2018. He appears as a recurring comic antagonist and companion whose exaggerated confidence and childish behavior made him memorable among players. Short audio cues associated with the character circulate in game edits, animations, soundboards, and fan-made dialogue scenes. Because this clip lasts only about half a second, creators can use it like a character identifier or reaction beat while keeping the pacing of a video intact.