Quick question from a new Woz RR owner. Sometimes when I hit the rainbow targets and light them all, the house spins a few revolutions and I get a full LCD screen update of the spins needed for munchkin mode. Is this normal? It doesn't happen every time and I thought the house should only spin when the ramp is made? Does anyone know if this is right or perhaps there is an intermittent problem with the upper switch for making the ramp?