Fisher price ruined my child's Christmas. This is the only thing my 3 year old wanted from Santa. On X-mas we put it together for him and it had a short (the lights would flicker and than go off). We exchanged at Toys R' Us where we bought it - whiched raised a lot of questions by our 6 year old twins since Santa brought it. Toys R' us did not even blink. Apparantly they had been slammed with Smart Cycle returns due to the same problem. The service counter was piled high with them. We thought that we would try another. This one did the same thing. We ended up just returning it and never bought another one. The employee said that they had gotten even more returned for the same reason. This toy is the biggest dud. I would not waste my money on it.