Reserve 20 berries for the garnish. Mix crumbs and butter together and press into 9" square pan. Refrigerate crust till filling is made. Beat the cream cheese, marshmallow creme and lemon juice with mixer on medium speed till light and fluffy. Stir in the raspberries; spoon into crust. refrigerate 4 hours Cut into 20 bars. tope each one with a berry. Time indicated is chill time.