Chamber 15: in 14 portals
1. first place a portal on the extended tiles above you
2. the next portal should be in the center of the checkerboard tiles, that way you can double fling using only the two portals
3.-6. the next is an energy ball puzzle and can be solved in 4 portals. the first two portals should be on the wall opposite the ball shooter so that once the ball goes through the portals it will go into the section with the ball receiver. the next two are above the receiver and where the ball collides with the wall.
7.-9. this next double fling section requires 3 portals and can be completed normally. one on the extended tiles above you. go up the side stairs and place one in the hole. jump through and shoot the last on the ground as you fall.
10.-14. the next obstacle is the hallway with water and the once moving platforms, don't try to start them its a waste of portals. Instead place one on a wall and the next down the hall with the platforms. You can crouch and walk out of your portal so that you can send another one without being knocked off into the water. do this once or twice depending one where you place the portals to get a better score.
you can get to the gate in the final room by going up the moving platform opposite the finish jump crouching to the box (the thing that opens when you hit the buttons) and finally jump crouch to the finish
depending on how efficient you were you can do it in 13 or 14 to get gold.
if you have alot of time on your hands you can do it like this guy in 7
http://www.youtube.com/watch?v=yw1EKmAzToU
the video also shows some of the methods described above so if you can't understand my mumbling on and on, watch the video!
thanks for the video whoever you are
1. first place a portal on the extended tiles above you
2. the next portal should be in the center of the checkerboard tiles, that way you can double fling using only the two portals
3.-6. the next is an energy ball puzzle and can be solved in 4 portals. the first two portals should be on the wall opposite the ball shooter so that once the ball goes through the portals it will go into the section with the ball receiver. the next two are above the receiver and where the ball collides with the wall.
7.-9. this next double fling section requires 3 portals and can be completed normally. one on the extended tiles above you. go up the side stairs and place one in the hole. jump through and shoot the last on the ground as you fall.
10.-14. the next obstacle is the hallway with water and the once moving platforms, don't try to start them its a waste of portals. Instead place one on a wall and the next down the hall with the platforms. You can crouch and walk out of your portal so that you can send another one without being knocked off into the water. do this once or twice depending one where you place the portals to get a better score.
you can get to the gate in the final room by going up the moving platform opposite the finish jump crouching to the box (the thing that opens when you hit the buttons) and finally jump crouch to the finish
depending on how efficient you were you can do it in 13 or 14 to get gold.
if you have alot of time on your hands you can do it like this guy in 7
http://www.youtube.com/watch?v=yw1EKmAzToU
the video also shows some of the methods described above so if you can't understand my mumbling on and on, watch the video!
thanks for the video whoever you are
