This clip comes from Plants vs. Zombies, the tower defense game released by PopCap in 2009. The win theme became recognizable among players because it plays at the end of a successful level, giving a quick burst of relief and reward. Over time, people started using it in short edits and meme videos to mark any small triumph, not just game victories. It still works well online because the melody is instantly readable as a success cue, especially for viewers who grew up with the game.