Chamber 10: 10 Laser Sync

Immediately hang a left, flick the switch, jump up to the platform located just up above you and to your right. Start jumping up the ledges only once the laser beam has just finished hitting the ledge above you.

Hit the switch and time your jump off to the switch below. Begin your hop off the top when the left-hand laser beam just hits the ledge two down from you to pass through when both beams are off.

Quickly hit the switch to open the door and drop down into the area below. Stay in the middle of the two turrets moving in a constant clockwise motion. The ledge on the right is needed to stop you from landing on the lower turret; staying up top will get you killed.

Make your way to the left-hand switch first and hit it quickly before dashing back out to beat the turret below you from spotting you. Follow the leading turret again, stopping off for the switch in the bottom-right corner. Finally, go back around and quickly leave this area through the entrance at the top. This switch activates the lower moving platform in the adjacent laser room.

Make a mad dash to the far right and leap up the ledges through the trap door before the robot closes it by stepping off of the switch. If you are too slow, wait for the robot to go back over it, but this will cost valuable time.

Once you are up with the Robot, it will spot you. Hop up to the top-right corner and wait until it loses sight of you and moves back to the pushable block on the left. Drop down and jump over its head so you are hanging off of the block.

Drop down onto the floor switch as the P-201 Robot is on top of the trap door, causing it to fall into the laser beam below. Jump back up through the new tunnel on the right-side of the screen, fall down, and then drop out so you are standing above the robot. Once it has passed back under you, drop down to hit the switch before jumping straight back up to safety.

Leap up to the friendly block via the newly opened passageway and push it on top of the trap door. Stand on the floor switch to drop it down to the same area as the Robot and then push this block far left so it forces the robot to stay on top of the floor switch down here. If you need the hidden Helix, grab it now by following the box-out. Otherwise, run straight to the switch on the far right.

If you have been fast throughout the whole level, the lower moving platform in the laser room will be moving towards the terminal. Once it has reached the terminal, hit the switch to start moving the upper laser room platform. It is essential to get the two moving in parallel, otherwise the laser room will be much harder.

With the platforms in sync, immediately dash back to the teleporters located near the entrance and step through them to reappear in the laser room. If you were fast enough, the platforms will be right in front of you, allowing you to simply step onto them. Stay in the middle of the moving platforms, step off to hack the panel, and then immediately get back on them to reach the teleporters again. Step through, then drop down to the open exit.