It all starts anew, as usual, with simple tests. We climb onto the platform and wait for the laser to appear. One portal is under the laser, the second is nearby, on the ceiling where a faint red light is visible. In the next test, we create a portal to the cube in the corner. Use it to direct the laser into the corresponding hole. We climb up the ladder that appears. We create a portal on the floor.
We go down and create another portal. We take the cube, the ladder disappears by itself, but we can still get there through the portal we created on the floor. We place the cube on the button and proceed to the next test. We get to the top using portals. We direct the lasers into the corresponding holes. One using regular portals, the second using the channeling cube. Next, we create a portal on the wall where the laser is aimed, and another that will direct the laser into the hole. When the platform reaches the console, quickly shoot near it.
We activate the console, activate the platform again, creating a portal on the wall with the laser, pick up the cube, and quickly jump onto the platform. Throw the cube onto the button – the test is passed. In the next room, we’re given the opportunity to fly a bit using aerial faith plates. We fly to the other side and activate the console. Seizing the moment, we jump and grab the cube in mid-air. We place it on the button and head to the elevator.
Before embarking on our long flight, let’s plan our actions in advance. Move forward and look around. Noticing two half-bent platforms, we create portals on them. Step onto the aerial panel and enjoy the long flight. We don’t remove the portals – we’ll need them later. Activate the console twice. Keep a close eye on the cube; the main thing is not to miss it and grab it in time. We send it to the button and move forward. GlaDOS, as if mocking us, dissolves the cube.
So, we block the laser with it and stand on the lowered platform. Now we need to remove it, so we create portals underneath it and elsewhere. At the top, we create a portal on the half-bent platform opposite the lower elevation. Now we create another portal under the cube. We leave the portal on the platform and create another one on the floor. Grab the cube and jump directly onto the portal.
