I don't know, but there are no checkpoints and rules are you can't use your portal gun. There's the plot for ya. No portal guns, was it a shock that it's in the title. lol
But yeah here is a picture of one of the hard parts:
So yeah.....
Anyway get yourself the map! what are you waiting for? The bus? Rarfile: http://www.mediafire.com/download/7a0e7 ... ge_Run.rar or you can get the zip file: http://www.mediafire.com/download/6y5db ... ge_Run.zip If you have problems with the content or the map itself or just want to suggest some things contact me : Sambathlionkiller@gmail.com (Yes, I know my e-mail is weird)
Best of luck to you with the map
-Sambath