So now you are in the navigation room, right? In the briefing your computer told you about what destroyed the elevator. It's named the SA-X, which is the X-clone of Samus with all of her upgrades. However, this early in the game you are no match for this powerful creature.
- Objective A: Bomb Data ready. Unlock Data Hatch and download
Game play[edit]
After the report save your game and refill your energy and weapons. When you enter the sector the passageway you will notice is directly below from where you started. It is also heading in the left direction. Though ignore this room for now because it's a dead end. Samus won’t be able to jump past the tall worm creature, so don’t bother with it yet. Instead head for the top-right door to a corridor. Head right to a shaft. Then head up and go through the top most door drop down and plug yourself in the terminal and get access to level one blue doors! (Which you will need in order to enter the Data Room at the other side of the sector, left side to be exact.)
Get out of the security room at the bottom-right hatch and retrace your steps to that big large room, remember? As you come by in there you have access to a small room to the right though you can’t get what’s inside at the moment. So don’t go in there. Continue moving to the bottom left hatch to the Data Room. Speed down the quick corridor to the left now you’re getting closer, woohoo! Now climb up to the left of the following room to find that security level one door colored blue. Shoot that sucker to open it and enter the data room. Now you have one of my favorite weapons of secret finding! It should tell you how to use it but basically you roll into a ball and press 
to release one.
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Introduction[edit]
When you get out of the data room, the ground will start to shake with great force. Then you will hear some scary footsteps in a distance which belong to the SA-X. Stay where you are until it’s gone. Though still keep this in mind as you go forward.
Game Play[edit]
Head right and bomb the right wall and roll right for you first: Missile Tank. Go back and drop down. You will notice that the door has been destroyed. No problem: we just have make an alternate route. Go right and bomb the floor to a corridor that’s hidden. Head right and take a breather and save your game. Save often (remember the SA-X is around) and keep your guard up. Go left through this corridor to a shaft. In here, Place a bomb on the block to make this metal pillar rise so you can be able to reach the top. Shoot the left part of the wall to reveal a: Missile Tank. To reach it bomb the floor until that pillar rises.
Go back to the shaft and through the small passages bombing the blocks that are in your way. Do the same until you reach the bottom of the shaft. Then go left. Go down the shaft and go right to a big room. Go to the bottom while bombing the floors on the way and then go to the bottom-left corner of this room. Bomb the edge of a ledge to the right and reveal a passage. Roll in it and drop down to get another; Missile Tank! In order to get out simply shoot the ceiling and climb up. Go to the door on the right and reach a corridor. Get past those pits (to pass the middle one, bomb the floor until a metal pillar rises which will assist you) Go to the right into a corridor with a little enemies that you can shoot for refills. Go right to a trusty save room and save your game. Then head to the right to another shaft. Go up and go in the second door onto the right to a corridor. Go through the door at the end leading to a small shaft. In here head right to save room, if you want to save your game right now you can but you don’t have to, then keep on going right to a room with an; Energy Tank! Go back to the save room and save your game if you haven’t. Then continue back to the small shaft.
Bomb the floor to drop into the room below, get ready to fight a boss, and defeat on of those hatch guardians with an eye. Kill it with three missiles and enter for you boss battle.
Boss Battle[edit]
Boss Name: Cyclops mouth
Abilities received: High Jump and Ball Jump
How to defeat: keep avoiding it until it jumps and opens its mouth. Fire missiles at the center of the mouth to damage its eye. Repeat until Core-X ball appears and crack it to receive the HIGH JUMP.
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Introduction[edit]
Now that you defeated the boss and cracked the Core-X. Grab the Core-X parasite to earn back your ability to high jump while in ball form.
Game Play[edit]
Go back to the long shaft to find that the door leading there has been turned to nothing. Bomb the rubble to go to a passage downwards. Once you get there stay there. The reason is because the SA-X will appear. After it’s gone, move to the right and bomb the floor in order to go down. Go left to reach the long shaft. Go up and through the door on the left which leads to a water-filled room. Jump up to the monkey bar looking things and go left on them to reach a: Missile Tank. Wait, there’s another one. Drop into the water and place a bomb on the floor. Then a metal pillar should rise. Use this to enter the small passage to the door. Go in it to find another: Missile Tank. In order to get it; bomb the floor until the pillar rises, jump on that and then jump while in ball mode to the block and bomb it. Once the block is out of the way, jump to the gap and climb into it before dropping to the; Missile Tank. When you’re ready, go back into the primary section of sector and into the small crack in the upper left of the shaft.
Before going to the Navigation Room, remember that room I told you about at the beginning of this walkthrough? The one you couldn’t jump over yet. Now you can. Go to that room and jump that tall Jell-o like monster. Then go get the: Missile Tank. Then when your done go back to the large room to the upper left hatch to the end of this mission. Grab a quick recharge and save then proceed to the Navigation Room.
Objective D: Aberration in Sector 4(AQA). Proceed to sector 4.[edit]
Introduction[edit]
In here you learn the latest tragedies of the SA-X and the parasites. Then your computer tells you you’ve done a bad thing. Due to your unlocking of Security Level 1 doors the X parasites and the SA-X now have access to new areas in this space station. In the report you are being told of unusual behavior in Sector 4 also. It’s your job, or Samus’ job, to check that out. So lets head out.