After you acquire the Ice Missile ability from the blue E.M.M.I., you return to Ferenia.

Get a Missile+ Tank

Go to the right and a door will open. You can optionally try the following to get a Missile+ Tank. If you Speed Boost through the large door from the shuttle area, then jump in the next room to reach the ledge, then do a wall jump against the right wall, followed by a slide to the left, you will reach a small room on the left. Ready a Shinespark there, then slide to the right and drop a bomb, then immediately press B and tilt up on the left control stick to do a Shinespark upward through some Speed Booster Blocks above you, allowing you to reach the Missile+ Tank at the top of the room. If you do this, then after you get the Missile+ Tank, drop down below and set a bomb at the bottom, then slide right to fall through the Pitfall Blocks there.

Reach the E.M.M.I. Zone

From the room to the right of the shuttle area, go through the door on the right. Then go to the right and down below, and shoot the floor to the right of the box with the green dots on it. Go down below, then go to the left, crouch to kill the creature in the tunnel, then go to the end of the tunnel and use a bomb to break a hole in the floor. Then kill the creature that has covered up the door, and go through.

Go down below and go through the door on the right to get a briefing and save the game. Then go through the door on the right.

Go to the right to reach the lowest part of the room, then go through the door at the bottom left of the area.

Go to the left and down. Ignore the door on the left; it leads to an area of extreme cold that you can't safely enter. From that door, go downward and to the right. Threre is an E.M.M.I. Zone Door at the bottom right of the area. Before you go through, be warned that this E.M.M.I. can shoot a bubble at you to stun you, and it can detect your movements from far off, but you need to move quickly, so you may not want to use Phantom Cloak. Go through the E.M.M.I. Zone Door when you are ready.

Ferenia E.M.M.I. Zone, Part 1

Use the Grapple Beam on the blue wall to the right to fall into the water below, then go a little bit to the right and use the Grapple Beam on the ceiling, but beware of the flying robots. Use the Grapple Beam on the ledge to the right, then go to the right to fall into the water on the right. Use the Grapple Beam on the right side of the ceiling to get close to the door, then go through the door.

Use the Grapple Beam on the wall to the right, then drop down to the right to land on a small platform below. Use the Grapple Beam at the ceiling to the upper right, then land on the platform below the right side of that ceiling. Go a little to the right and use the Grapple Beam on the farther ceiling, then get onto the ledge to the left. Use the Grapple Beam on the wall at the upper left. The E.M.M.I. may be close enough to see you at this point. If so, jump to the right, then jump up to the ledge above you. If you are far enough away, the E.M.M.I. will lose sight of you, unlocking the E.M.M.I. Zone Door on the right. If the E.M.M.I. is not too close, go right and leave through the E.M.M.I. Zone Door. Otherwise, from the upper ledge of this room, slide left, then go left and shoot a charged shot at the door, and go through. Go to the left to fall in the water and try again.

Get the Map of Ferenia

From the exit of the E.M.M.I. Zone, jump up onto the platform above, then go to the right and drop down. Go through the door at the bottom right to reach the Map Room. Get the map and save the game, then go back into the previous room.

Go to the top of the room and roll into the small tunnel there. Use a bomb to open a hole to the area above. Jump up through the hole, then kill or freeze a wall creature and get onto the platform above. Kill or freeze the ceiling creature, then go through the E.M.M.I. Zone Door.

Ferenia E.M.M.I. Zone, Part 2

Go to the left and roll through the tunnel, then aim the Grapple Beam upward and use it to reach the blue ceiling above you. Get onto the ledge on the right, then aim the Grapple Beam upward again to reach the next blue ceiling. Go to the left and make your way upward to the E.M.M.I. Zone Door at the upper left. Go through.

The only thing you can do in this area is use the Energy Recharge Station at the top left. The purpose of going through the E.M.M.I. Zone Door was to set your last checkpoint to that door. When you're ready, go back into the E.M.M.I. Zone.

Jump over the gap to the right and go through the door at the upper right. Go to the right, jump onto the ledge on the right, then fall off of the right edge of the ledge. Get in the water and go left until you fall onto the platform below the blue ceiling. Aim to the right and up so you grab the blue ceiling as far to the right as your Grappling Beam can reach. Then aim the Grappling Beam to the right so you are pulled to the right wall. Drop down and open the door and go through.

Go to the right and go through the tunnel on the right. Use the Grappling Beam on the blue wall to the right, then climb to the top of it and use the Grappling Beam on the blue wall to the left, on the end of a ledge. Climb up onto that ledge, then use the Grappling Beam on the blue ceiling above and to the left. At the right side, drop down, and even if the E.M.M.I. has seen you, it will lose sight of you at this point, and you can go through the E.M.M.I. Zone Door at the bottom right.

Get an Energy Part

Kill or freeze the wall creature, then go downward. There is a robot on the right that will keep shooting beams at you, so kill it as quickly as you can, or ignore it. Then shoot a charged shot at the door on the left, then go through and save the game.

Go through the door on the right to leave the save room, then go to the right side of the room (doing a Spin Boost to jump over the robot if you don't feel like fighting it) and roll into the tunnel. You will fall through some Pitfall Blocks at the end. Go through the door on the left to reach a Total Recharge Station. Then go through the door on the right.

Go to the right side of the room, but before you go through the tunnel on the right, slide into the tunnel to your left and use a bomb at the end to reach the Energy Part.

Then go to the right and roll through the tunnel to reach the next room.

Get a Missile Tank

Shoot the ceiling near where you came out of the tunnel, then jump up through the hole and shoot a missile at the uppermost block of the wall on the right to reveal a Missile Tank.

Then go back down and shoot the blocks in the floor to go back down below. Keep shooting the floor and going downward, then shoot at the bottom of the wall on the right and slide into the space you revealed. Drop down from there and kill the eyeball monster on the door, then go through.

Escue

Since this boss attacks so quickly, one strategy for this boss is to use Flash Shifts to always go to the other side of it while it is readying an attack. This will help distance you from the attacks, making them slightly less difficult to dodge.

This enemy will sometimes spit a black orb at the floor, which will electrify the floor a moment later, so be ready to jump. If this orb hits the wall instead of the floor, it will dissipate and won't electrify the floor or wall. This enemy will also shoot a stream of projectiles at you. If you Flash Shift to the other side of the boss while it is readying this attack, you will be farther away from where the projectiles are emerging, which may help reduce how many of them hit you. This enemy can also dash toward you and hit you, but it will not flash, so you cannot perform a Melee Counter.

After you hit the boss enough times, it turns into a floating Core X. Hit it with missiles and charged shots while dodging it with Flash Shifts and Spin Boosts as it floats around. After each time you hit it, it will flash and be invulnerable for a short while. Hit it again as soon as it stops flashing, and repeat these steps until it dies.

Jump up to absorb the X parasite that it drops, to learn the Storm Missile ability. Now, when you hold R, your missiles will charge up, and when fully charged, you can use the aiming laser to lock on to up to five targets, then press Y to shoot a barrage of missiles at those targets. Some enemies can be targeted multiple times. This can make fast boss battles slightly less difficult since you can hold R while moving around, and you will automatically lock onto the enemy if your aiming laser happens to point in the enemy's direction.

Reach the E.M.M.I. Zone Again

Exit the room and make your way up. Storm Missile works well against the eyeball enemies that you will encounter along the way. Roll through the tunnel at the upper left of the area.

Go to the left, and go through the door to use the Total Recharge Station if you wish. Then go back through the door on the right. Slide through the tunnel below that door. At the other end, stand in front of the statue, then hold R until the missiles are fully charged, then use the aiming laser to lock onto the five green spots on the walls and ceiling. Press Y to shoot missiles at all five. This will remove the Storm Missile Box on the left. Shoot to the left to kill the flying creatures that come toward you.

Then if you wish to save the game, go upward to the area at the upper right of this room and go through the door at the end to reach the save room. From the save room, go through the door on the left, and go to the left.

Kill the creature that covers the door on the left side of the room, and go through the door. Kill or freeze the wall creature above you, then jump up onto the platform above you, then kill or freeze the ceiling creature, then go to the upper left to reach the E.M.M.I. Zone Door.

Ferenia E.M.M.I. Zone, Part 3

As before, go to the left and roll through the tunnel, then aim the Grapple Beam upward and use it to reach the blue ceiling above you. Get onto the ledge on the right, then aim the Grapple Beam upward again to reach the next blue ceiling. Go to the left and make your way upward to the E.M.M.I. Zone Door at the upper left. Go through.

Use the Energy Recharge Station if you wish, then drop down to the platform below it. Stand at the left edge of the platform and hold R to charge up the missiles. When fully charged, use the aiming laser to lock onto all five green dots in the wall and ceiling, then press Y to shoot the missiles and destroy the Storm Missile Box below you. Go through where the box was. Then go to the bottom left of the room and go through the door there.

Robot Chozo Soldiers

You now need to defeat two Robot Chozo Soldiers. You may find it helpful to hold R to lock onto the robots as you move around, and press Y when able, to hit them with Storm Missiles. That way, you don't have to worry about aiming precisely as you dodge their attacks. Otherwise use Flash Shift and Spin Boosts to dodge their attacks and move around the area.

Return to Ghavoran

If you wish to save, go through the middle door on the left and save your game, then leave the save room through the door on the right.

Make your way to the upper left of this large room, shoot a charged shot at the door there, and go through.

Shoot through the ceiling, then jump up and stand in the middle of the area with the green dots on the wall and ceiling, then hold R to charge up the missiles, and use the aiming laser to lock onto all five green dots in the wall and ceiling. Press Y to shoot, destroying the Storm Missile Box on the left. Go past where it was, shoot a missile at the door, and go through.

Shoot the item sphere in the statue's hands and take the item to get Space Jump. You can now jump an unlimited number of times by pressing B at the right time during a Spin Jump. If used underwater, you can't jump higher than the first jump.

Slide into the tunnel on the right, then roll through the tunnel on the left. Go down into the water, and use the blue wall on the right to get onto the ledge above it. Shoot the floating creatures on the left, then Space Jump to the left to reach the ledge on the left side. Aim the Grappling Beam up and to the right to grab the blue wall on the right. Shoot the red thing in the ceiling, then kill or freeze the two wall creatures, then climb up out of the water and Space Jump upward until you can land on the ledge on the left. Go to the left to reach the shuttle area. Step on the glowing panel in front of the shuttle to go to Ghavoran.