

Pressing the red button here will temporarily open the wall panel that you entered this Ride the platform to the far end, and fall onto the lower ledge. Once the containment thing has the pellet in it, a platform from your ledge to the other end of the room will be activated. It's not that hard to just jump through and press it while you fall, though. But if you want to try that, practice first to make sure. You can probably reach the red button through the portal, without having to jump through. You need to press that small red button as soon as possible. To the small red button, and put a portal on a wall close to you. Make a pellet come out of that portal, then quickly put a portal on the piece of wall sticking out that is close Now that the turrets are gone, you have to put a portal on the piece of wall that sticks outĪt the far side of the room that faces the small room and small red button to the left of the If you position yourself correctly, none of the turrets will be able to see you if you stand

If you want, you can exit from the left of the panel. While the panel is pushed out, make a pellet shooter shoot a pellet at the various turrets until they are all disabled (thereĪre four). Be careful, though, because there are turrets here, and at least one of them can see Make the wall panel push out, giving access to the big room. Instead, go through the door and into the room with the small red button. Fall into that portal and you should have enough momentum to make it to the ledge with theĭon't bother with the red button just yet. Now make a portal on the lower piece of floor that you can see from theįour-dot ledge that you're standing on. Make a portal on the piece of wall that sticks out, then make a portal below your feet to fall onto that higher ledge with the four Finally, when you can see the four-dot tile, Next, shoot a portal onto the ceiling above the ledge with the three-dot tile on it. You should land on a piece of floor with a two-dot tile on it. Then make a portal of the other color on the face of the tall white wall, below the level that you're standing on, so you can fall through it. Look at the ceiling above it, and shoot a portal at the farthest part of the ceiling. There is a tall white wall that you can see. Shoot a portal on the ceiling over the floor across the pit, then use a wall portal to drop over to that side.

