Follow this tunnel, noting that some of those small enemies will appear, until you come to the waterworks. Take out all of the enemies, including the plant that spawns more, then connect the two Grav Targets. While riding the beam, use your Comet Strike to grab the battery bot in the middle, then place it into the socket.
This will drain the water in the room and reveal a ledge below, so glide down there and take out the Thugs. Turn the bolt crank to make more platforms appear, but it will also make the water rise. Ignore the Thugs and make your way up these platforms, then use the magnetic path to get above ground again. Feel free to replenish your ammo with the nearby vendor.
You'll see some Thugs across the bridge, who will jump over when they spot you. Defeat this wave and then another to finish them off, then continue to find even more enemies. You'll eventually reach a spot where you need to glide down to another ledge, where you will find a bigger area with a bunch of Grav Targets, with one near your position and a bolt crank near that.
Forget about the bolt crank and connect the Target near you to the one across the way. This will allow you to land on a ledge where you can connect the other two, bringing you to a spot with a battery bot. Toss it in the nearby socket, which will open a door near the beginning, then make your way back there. Now, turn the bolt crank, then connect the Grav Target that rotated to the one behind the door.
Note that you only have 23 seconds once you turn the bolt crank, so connect the two targets and then ride the beam until you get to the now raised platform. Use this to bypass the spotlight for the turret and ride through to the other side. Get rid of all the enemies, then turn the bolt crank in here to make some water rise, using the magnetic walkway to escape it.
The next area is like a mini-arena, where you will have to face off against a bunch of Thugs. This culminates in a battle against a spaceship, which has two attacks. It will either fire a volley of blasts, which can be easily dodged by strafing to one side, or it will fire off electrical beams that need to be jumped over.
Once you down the ship, Neftin orders the platform to be destroyed, which will make it start sinking. Make your way to the edge over near the pillar holding up the Grav Target and jump onto one of the platforms sticking out. Quickly connect the sinking target with the other one, then wait until you can jump into the beam.
Go to the end of the walkway and turn the bolt crank, which reveals another Grav Target and a timer of 25 seconds. Connect the target close by to the revealed one, and as you're crossing the beam, throw your wrench to grab the battery bot. At the end, toss it into the socket to open the door and then continue on. There are two sets of Grav Targets here, with a security turret blocking each one's path.
