Once you are back on your feet, use the suit locator to see where we need to go next. Ignore that for now and look in the opposite direction to see a hallway with a cargo crate in it. Look behind the cargo crate for a wall holder containing a power node (7), then make your way back to the train and look around behind it for a schematic (Schematic 3 - Pulse Rifle). After you have stocked up on ammo and looted whatever else you can from the room, follow the suit locator across to the opposite side and climb the stairs. Here you will find a save station (ss8). When you are ready enter the door to the left.
Inside, take the first left and grab the power node (8) from the box on the wall. Face the opposite direction and continue along the hallway. Go into the side passage on the left and climb the ramp exit through the door here.
The room is the same as one you have seen twice before already, a long corridor with an inactive automotive walkway opposite the entry. This room has toy stores and some neon happening though, so there is plenty of light - just as well, you are going to need it. Make your way left to the far side of the room and you will hear a music box play, this triggers your first encounter with 'the pack' the collective name for groups of weak but numerous child necromorphs. Each of them will usually go down after a single dismemberment, but they usually come in groups of 10-15 so you will need to keep moving to prevent yourself from becoming overwhelmed, after all no one wants to be beaten up by a group of kids do they? No.
Note: for achievement/trophy hunters, this is a great place to get a pair of achievements and because the previous save station is so close, you can reload your previous save game to get both of them.
- You can use the Line guns alternate fire on the ground then stand on it so that the pack children surround you, when it explodes and if you kill six at once, you will unlock the trophy/achievement 'My Boom Stick'
- You can also use the javelin gun to shoot one of the pack, then hit the alternate fire immediately, as long as there are enough of them around you will get the achievement/trophy 'Shock Therapy'
Once the pack has been defeated, you will be able to access the save station (ss9) and the shop. When ready, proceed into the elevator and ride it to the next area.
You will find yourself in a large mall-type area; a necromorph will jump over the railing in front of you, but wont bother you for now. Make your way to the left.
Note: See the Giant blue statue here? Dismember it for an achievement/trophy 'Lightspeed de Milo'.
To the left of the statue you should see a shop with the sign 'BOLD Stylings' on it, look on the ground in front of the shop to find a text log (Log 9 - Titan Part 2). Follow the path around the top of the area, past the statue and into the door with the yellow marker on the wall. Look on the floor to the right of the yellow marker window to find a text log (Log 10 -Altman's Footsteps). Hack the panel on the opposite side of the room and ride the elevator to the next area.
You will find yourself in a unitology recruitment centre. Look on the desk to the right for a text log (Log 11 - Recruiting). Continue around the corner to the right. At the far end of the hallway you should see a pane of weak glass. As you move forward a group of a couple of slashers, a small group of the pack and an exploder will make their presence known. When you see them, shoot the window to create a vacuum and then wait for all of the baddies to be sucked outside before shooting the red triangle to activate the blast door. Finish off any remaining necromorphs and then head through the maintenance vent to the next zone.
After exiting the vent, cruise to the right and climb the ramp on the left. Enter the control room at the top. Here you can access a save station (ss10) and upgrade some gear at the bench. When you are done, activate the blue panel to deactivate gravity in the next room. Exit the control room and descend the ramp back to the previous room. As you make your way down, a spitter will appear and is soon backed up by a pair of slashers and an exploder. Defeat them and then head through the door to the left at the foot of the ramp.
As soon as you enter zero gravity, look to your left, fly over to the platform here and enter the door for a power node (9) and some other supplies. Return outside and float across to the platform opposite where you entered. Move inside and activate the blue panel at the far end of the corridor. Return to the zero gravity area to find the large door now open. You will now have to fly up this tube, dodging debris as you go. Land on the small platform to the right of the vent that is shooting out the garbage and enter the door.
Note: After returning to the regular gravity area you will unlock the achievement/trophy 'One Small Step'.
Make your way through the room and follow the ramp all the way to the top where you will be attacked by a slasher. Eliminate it and go to the locked door opposite the ramp, use a power node to unlock it. Stomp the body for a tonne of money then return outside. Pick up the power cell on the floor nearby and place it into the socket on the wall in which it belongs. Enter the now active elevator and ride it up to the next level.
After jumping off the elevator, examine the wall cabinet on the left for a power node (10), and then continue through the unlocked door. In front of you on the floor is a corpse surrounded by swarmers - small insect like necromorphs that will come in bulk in an attempt to jump on Isaac and impair his movements - if this happens mash the corresponding button prompt to remove them. Once they are dead, go into the room they came from and look on the shelf next to the bed for a text log (Log 12 - Sally 3).
Exit this room and turn left down the corridor. Kill the slasher and the swarmers that appear through the door here. Then head through the next open door on the left. Continue into the child's room on the left for a short scene. Afterwards, exit through the now unlocked door, continue through the door ahead and then across the balcony to the door on the opposing side.
Kill the slasher that bursts through the door in front of you, before venturing down the corridor to the right. Enter the elevator here and activate it. Ride it down to the ground floor and you will find yourself next to a save station (ss11). Save if you wish and continue down the hall and enter the large open area.
Here we will fight a number of necromorphs. Among the crowd are a pair of infectors who will create new slashers from the bodies lying around the area if you don't kill them quick enough and they are backed up by an exploder, a slasher and two spitters. Try to eliminate the infectors first (if possible) before focusing on more immediate threats. Once the room is clear, look behind the marker statue to the left to find a schematic (Schematic 4 - Javelin Spears). Make your way to the opposite side of the room and through the unlocked door here.
Inside the next room are a number of displays that will give you a bit of insight into the religion of unitology if you are interested in a little bit of back story. If not, continue through the door at the far end of the corridor.
Climb the stairs and some machine gun fire will light up the room in front of you. Quickly sprint across to the door on the other side to complete the chapter.
