Introduction

Navigate the tricky laser puzzles of Portal Reloaded! This guide breaks down Test Chambers 13, 14, and 15, showing you how to use time portals and reflector cubes to succeed.

Alright, let's dive into the laser-focused challenges of Portal Reloaded! These next few test chambers are all about manipulating lasers with your trusty portals and the new time mechanics. Don't worry, we'll take it one step at a time.

Test Chamber 13

We're starting off in Test Chamber 13. The goal here is to get a laser into a receiver using both regular portals and a time portal. First, place your portals exactly as shown in the image. You'll use one portal to redirect the laser sideways, and then a time portal to send it into the future. Once it's in the future, just run through that time portal yourself. You might take a little laser damage, but it's the quickest way to get there.

Now that you're in the future, you can move the portals around without affecting the present. Your task is to set up the portals so the laser goes straight into the target. Once that's done, you can head through the exit door for this chamber.

Test Chamber 14

Test Chamber 14 requires a bit more juggling between the present and the future. First, hop into a time portal to return to the present. You'll see a switch in the middle of the room; use it to summon a reflector cube. Place this cube in the area shown in the image. Now, use a portal to guide a laser through the first node, and then use the reflector cube to bounce that laser into the next two nodes. After that, it's time to jump into the future.

In the future, use your portals as depicted in the image to bring a laser back into the present, making sure it passes through the node. Next, grab the reflector cube from the future and bring it back to the present through a time portal. Position this present-day reflector cube so it hits all three nodes. If it's not quite right, adjust it. If you accidentally moved the future reflector cube too far, you might need to go back to the future to grab it again and bring it to the present.

Finally, place the future reflector cube at the end of the line of nodes. It should reflect the laser into the receiver, just like in the image, and that's Test Chamber 14 cleared!

Test Chamber 15

This chamber is a bit of a marathon with lots of back-and-forth through time portals. To start, head through the particle field on the left. Place a portal where the laser is hitting the wall, and then put a time portal on the opposite wall, as shown in the image. To get past the particle field without messing up your portals, go through the time portal to jump into the future. The particle field won't be an issue there, so you can move freely. Head to the other side of the room and use another time portal to return to the present, now on the far side of where the particle field was.

Now, place a new portal on the upper wall, above the laser room, so that the laser hits the first receiver. Jump back to the future and place a portal on the small wall in the laser room. This portal should direct the laser towards the receiver, as seen in the right image. Return to the present. The laser should still be hitting the receiver above. This will activate an elevating platform near the switch. Stand on this platform and place a time portal behind the node, as shown in the next image.

This action will raise the platform you're on, allowing you to summon a reflector cube! Place this reflector cube on the small ledge above the second receiver. Now, travel to the future by placing your time portal wherever it's convenient. Grab the reflector cube from the future and head back into the laser room. You'll need to place another time portal here to bring that future reflector cube back into the laser room in the present. Position it so the cube reflects the laser into the second receiver, through the node, just like in the following image.

Next, we need to get to the other side of the particle field without actually going through it. If you already have a portal on the far side, just go through it with the laser. Otherwise, use a time portal to bypass it. Make sure you're in the present on the other side of the particle field. Climb the stairs and use a portal on the upper wall to hit the third receiver. The final step is to move the reflector cube onto the switch, as shown in the image below, to complete this challenging test chamber.