Three hidden screens. 1st screen, stand the man in front of the stones on the first platform to the left and press space. 2nd screen, between the Legacydoor and the go down, left, up, left, up, right and press space on the door with "hidden" written on it. 3rd screen, watch all screens (except the hidden and Legacy screen) for at least 30 seconds. The top hidden screen will now be reachable. STE Screen works only with an STE.