Now turn to your left and aim at the top of the large white wall (on the far right of the room). You can use your portal here to guide the blobs of gel over the turrets, taking them all out a couple at a time. Now leave a portal on the very bottom right-hand corner of the wall and fire a portal near your feet.
Aim through the broken glass and place your portal directly underneath the tube that transports the bombs. Now place a portal directly above the switch and press the button. The bombs will fly through the portals and break open the white Conversion Gel pipe, allowing you to escape to the portal outside.
Once you reach the room with the conveyor belt, run towards the orange pipe and the conveyor belt will switch on automatically. Now run up to the platform to your right, plant a portal on the wall opposite the orange gel pipe and then look to your right. Set a portal under the glass pipe here and press the button. The bomb will land on the orange gel pipe, breaking it, coating the conveyor belt.
Welcome back to Aperture Science, a world where your Companion Cube isn’t you’re only company. Take control of Chell once again in Valve’s sequel which takes you on an humorous and puzzling adventure and in our detail-packed guide we’ll show you:
How to solve every test chamber first time.
Conquer every co-op chamber with a friend.
Loads of High Definition screenshots and videos showing you the solutions to every single chamber.
High Definition strategy videos for every achievement in the game.
Uncover all of the hidden secrets and Easter eggs.