While my grandson's reaction of jumping and screaming when he opened it on Christmas morning was very gratifying, disappointment set in shortly thereafter when the lights/sounds would not work consistently.  We had Eveready alkaline batteries in the toy, but apparently you must have the Duracell-type super powerful batteries in order for this toy to work properly.  It would be nice if they would state that on the box.  However, when it does work, it definitely lives up to its promise.