In both appearances, Corridor No. 2 leads to the room with the Stone Statues depicting Kraid and Ridley, which guard Tourian. It is a long corridor composed of the blue rock that makes up most of Brinstar, with several Koma statues, a small acid pool, and Air Holes that spawn yellow or red Zebs. At the end of the hallway is a Red Hatch which leads to the Tourian access room.
Zero Mission expands the room and connects it to the corridor with the Long Beam through the ground. It is through here that Samus first enters this room. There are two extra Acid pools. After stepping into the gates room and returning, the doors lock. Samus enters an enclosed area and is confronted by a Dessgeega. Killing it is the only way to unlock the doors.
While Samus can visit Corridor No. 2 very early on during her mission, she is normally unable to enter Tourian until defeating Kraid and Ridley. In the original Metroid, a Reo can be lured from this corridor into the Stone Statues room, frozen between where the bridge should appear and the acid, and then jumped off of, which allows Samus to access Tourian faster and without defeating Kraid or Ridley.
Metroid: Zero MissionEdit
- In Victory Techniques for Metroid, Samus waits until defeating Ridley and Kraid before traveling through Corridor No. 2. She recommends that players farm the Zebs for energy before entering Tourian.