[portal]did anyone completed the advanced test chambers?

[luppolo]

I'm in great trouble with portal's advanced test chambers, there are much less "portable" surfaces and some jumps look impossible to me. I need in particular help for the last one, i can't get past the first platforms at all! I already looked for a video tuton youtube but i couldn't find anything, can anyone help me? tnx in advance!!

 

[cabey]

Its been so long since i did them i cant remember exactly where you are in the game. Do you mean the level where the system tries to killl you off?

 

[luppolo]

no i already completed the normal game, i mean the test chambers you can load directly from start screen