Once all four are defeated, the entire structure will sink to the bottom of the chamber, caving in the floor and revealing the entrance to Tourian, which is underwater. Note that some points of the statue will be covered in moss once submerged in water. There is a glitch used in tool-assisted speedruns of the game, where Samus can use a Door Jump (similar to the original Metroid) to completely bypass the Golden Statues and enter Tourian without killing a single boss.[1]