Chuck E Cheese is the mouse mascot of the family entertainment restaurant chain of the same name, where costumed characters and animatronic shows have long been part of birthday parties and arcade visits. A short boo from that mascot has found a second life on soundboards, where it is shared as a lighthearted prank clip rather than a horror sound. Its appeal is the contrast between a familiar, friendly character and a sudden scare, which makes it easy to drop into memes, streams and short videos without needing any context.