very good game...
One of the best games on newgrounds...
Its not that hard i have almost beaten the real portal and it wasent really a challenge but for the game play it was ok
Brilliant game, It has kept me entertained for hours.
excelent by this moment im in level 35
man exceklent game i have shake my brain a few times but reaallyy funny
Really fun game, but can get a bit confusing at parts