Portal Chamber (Torvus Bog)

The Portal Chamber is a room in the Torvus area of Aether. At first Samus cannot access this room because it is on the other of a gate that cannot be opened from the Torvus Lagoon side. Most of the room is composed of a morph ball tunnel and while going through, Samus will see a portal and a Missile expansion. If Samus comes to the part of the room closer to Torvus Lagoon, in Dark Aether, there will be a morph ball elevator that will transport Samus into the center of the room. By entering the portal there, Samus can achieve a Missile Expansion.