Chamber 3: Glass Ceiling

Follow the Robot through the teleporter. Jump up to the switch above your arrival point. When the Robot reaches the lift railings, press the switch to raise the lift, then press it again as it steps off onto the sensor beam to drop it.

Jump up and hang off the Robot's platform. As it turns to face the wall, jump to the small gap at the edge of the platform beside the Robot. Immediately turn right and leap to the shadows near the terminal. Duck as soon as you land. If quick enough, the Robot will fail to spot you, speeding up the level and making the laser disappear faster.

Dash through the laser beam while it is off. Jump up, hang left, and as you run, check that the Robot above is still standing on the trapdoor. If it is, run through the teleporter on your left and straight into the sensor beam to drop it.

Go through the teleporter on your left to reappear behind the Robot. Pause for a second to allow the Robot to face away from you. Wait under the trapdoor for the Robot to open it, then leap up and hack the panel.

Wait on the upper level for the Patroller and the Robot to move their vision cones away from the drop-down area. Drop into the right-hand teleporter, then dash to the area with the laser beam. Quickly enter this room and use short hops to reach the Block, then push it down through the hard light.

The [Helix] is also here. Duck down until the beam reaches the apex of its movement above, then hop out and drop down. Go through the left teleporter and stand on the left edge of this platform. Crouch to become ‘Not Visible,’ then move right a few times to ensure the Patroller doesn’t spot your clone as it moves upwards.

Drop down once the Patroller passes. Dash past the terminal once the laser is deactivated. Drop off the ledge and dash through the teleporter back to the Block in the starting room (by the entrance).

Push the block through the teleporter, over to the lift tracks. Use the switch to raise the lift. Jump up onto the Block and push it left far enough for the Robot to stand on the floor switch, which deactivates the laser by the final terminal. Hack the terminal safely and make a run for the exit.