The Controller — LASERS Walkthrough

Navigate the challenging 'Lasers' section of the Portal Reloaded walkthrough. Learn how to use portals and time portals to solve Test Chambers 13, 14, and 15.

This guide covers Test Chambers 13, 14, and 15 of the Portal Reloaded walkthrough, focusing on the use of lasers and time portals.

Test Chamber 13:

1. Place portals as shown in the image.
2. Use a portal to move the laser sideways and a time portal to move it into the future.
3. You can take damage from the laser to travel into the future.
4. Once in the future, rearrange portals without affecting the present.
5. Position portals so the laser goes directly into the target to exit the chamber.

Test Chamber 14:

1. Start by taking a time portal to the present.
2. Summon a reflector cube from the switch in the center and position it in the present as shown.
3. Use a portal to bring a laser through the first node, then use it to reflect the laser into the next two nodes.
4. Travel to the future.
5. Use portals as shown to bring a laser into the present through the time portal, ensuring it passes through the node.
6. Pick up the reflector cube from the future and bring it to the present via a time portal.
7. Ensure the reflector cube in the present hits all three nodes; adjust as necessary.
8. If the future reflector cube was moved, travel back to the future to retrieve it and bring it to the present.
9. Place the future reflector cube at the end of the nodes to reflect the laser into the receiver, completing the chamber.

Test Chamber 15:

1. Go through the particle field to the left.
2. Shoot a portal where the laser hits the wall and place a time portal on the opposite wall.
3. Travel through the time portal to move into the future, bypassing the particle field.
4. Head to the other side of the room and use another time portal to return to the present, now on the other side of the particle field.
5. Place a new portal on the upper wall so the laser hits the first receiver.
6. Travel back to the future and place a portal on the small wall in the laser room to shoot at the receiver.
7. Return to the present; the laser should be hitting the first receiver, powering an elevating platform.
8. Stand on the platform and shoot a time portal behind the node to raise the platform further, allowing you to summon a reflector cube.
9. Place the reflector cube on the lip above the second receiver.
10. Travel into the future.
11. Pick up the future reflector cube and enter the laser room.
12. Place a time portal in the laser room to bring the future reflector cube to the present, positioned to reflect the laser into the second receiver through the node.
13. To get to the other side of the particle field without going through it, use a portal on the other side or a time portal. You need to be in the present on the other side.
14. Climb the stairs and use a portal on the upper wall to hit the third receiver.
15. Move the reflector cube onto the switch to complete the test chamber.