Safe Code

Complete walkthrough for Portal Reloaded's Laser challenges. Learn how to use portals and time portals to navigate Test Chambers 13, 14, and 15, including detailed steps and tips.

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

Test Chamber 13

Start by placing portals as shown in the image. Use a portal to move the laser sideways and a time portal to send it into the future. You can take some damage from the laser to travel into the future. Once in the future, rearrange portals without affecting the present. Position them so the laser goes directly into the target, then proceed through the door.

Test Chamber 14

First, travel to the present using a time portal. Summon a reflector cube from the center switch and position it in the present as indicated. Use a portal to direct a laser through the first node, then use this to reflect the laser into the next two nodes. Travel to the future.

In the future, use portals as shown to bring a laser into the present through the time portal, ensuring it passes through the node. Retrieve the reflector cube from the future and bring it into the present via a time portal. Ensure the present reflector cube hits all three nodes; adjust as needed. If you moved the future reflector cube, you may need to return to the future to bring it back to the present.

Finally, place the future reflector cube at the end of the nodes to reflect the laser into the receiver, completing the chamber.

Test Chamber 15

Begin by going through the particle field to the left. Place a portal where the laser hits the wall and a time portal on the opposite wall. Travel through the time portal to reach the future, bypassing the particle field. Proceed 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.

Place a new portal on the upper wall above the laser room so the laser hits the first receiver. Travel back to the future and place a portal on the small wall in the laser room to aim at the receiver. Return to the present; the laser should still be hitting the first receiver, powering up an elevating platform. Stand on the platform and place a time portal behind the node.

This will raise your platform, allowing you to summon a reflector cube. Place this cube on the lip above the second receiver. Travel to the future by placing your time portal conveniently. Retrieve the future reflector cube and enter the laser room. Place another time portal in the laser room to bring the future reflector cube into the present. Position it to reflect the laser into the second receiver through the node.

Now, reach the other side of the particle field without traversing it. Use an existing portal or a time portal to get around it. Once in the present on the other side, climb the stairs and use a portal on the upper wall to hit the third receiver. Move the reflector cube onto the switch to complete the test chamber.