Krystal is a central character in Star Fox Adventures, the 2002 GameCube adventure game developed by Rare, where she joins Fox McCloud on planet Sauria. Her laugh comes from her in-game dialogue, recorded as part of the character's expressive voice performance. As clips from the game circulated on soundboards and in fan edits, this brief giggle became a handy reaction sound beyond its original story context. It remains popular because it is instantly readable, warm and short, fitting memes, gaming videos and lighthearted edits without needing any knowledge of the game.