Press + on the Nintendo Switch controller to open the full map. Look for a door or passage you have not reached, then check the icon on it before walking there. If an E.M.M.I. robot sees you, run and hide until the zone doors unlock; ordinary Beam and Missile shots will not hurt it. The screenshots below show the map, two door types and the robot’s danger states.
You play Samus Aran, the armoured character on the screen. Metroid Dread is built around returning to old rooms after you gain a new ability. A blocked route is often a note for later, not proof that you missed a secret button.











