During part two when Shaggy, Scooby, Scrappy, Daphne, and Whoopsy Doo are in the cave, Scooby digs a hole in the ground finding the treasure box. After Scooby hands it to Whoopsy, which causes him to fall backwards and Scooby says "No, Whoopsy. Look out.," Scooby's mouth isn't moving.
