well first the smile on control room and in control room go down and break the wall /in pipes maybe some red can passing on there/ go in the ceiling of houses for secret big room and for end in control room only 1 time can maybe too much persons watching on window that all i found

you go to the attic via destroying wall in the wall in the bedroom of the spooky room upstairs, then you go down the well, run a bit until you reach the control room, then you click one of the buttons, and it will open the big garage door and then red lights start appearing

thanks