Sentinel's Path is a room in the Sanctuary Fortress in Metroid Prime 2: Echoes. It is connected to the Sanctuary Temple. Upon the first entry, a single Quad seems to jump from the ceiling of the room, where it may have been laying in ambush. After defeating Quadraxis it is replaced by two Mekenobites. An Echo Key Beam System blocks acces to a missile expansion behind a broken wall in the middle of the room. Strange enough, the path can be entered from only one direction, unless Samus has aquired the Annihilator Beam. this makes the path useless as a shortcut until Quadraxis' defeat.