lol, first is in commission and second button is pretty easy - but they add smaller RED button.And stage 3 end level and go up to rank Genius, and level Genius xD
lvl 6 - go to upper floor on left side using portal, open one portal on target, jump and quickly open second portal near first - second portal throw out you enough high to get to exit.Pretty easy - it's require only think.
lvl 11 is VERY EASY - just fast open one portal on floor near start and second on floor near exit,and then go through portal, before spikes smash you.This lvl is easy - it's require only small think.
lvl 32 - need to disable turret from room right to her(use portal to get here).Disable second turret with portal, then open portal so it's opposite doors.Box must be on button here.Open portal in ceiling in what plasma ball hits(and bounce :D). Then fast go to second button before plasma bounce from door..If you have luck - ball get through door to target.Then, place box on button in lower part, and you go to upper button.Then open portal in this part what door was blocking and go through it with box.Use box to disable last turret, then use portal loop to get enough speed to be throwed from portal to floor with exit.
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