so cool :P
You must traverse through the levels and solve the puzzles to advance to the next room.
--Use the W, A, S, D keys to move your character around.
--Space to jump.
--Left move button to fire your portal gun.
--Left Shift to Run
--R to pickup/drop objects
--Q and E to rotate objects in players hands.
For the executable, you need to keep the application and the data folder in the same directory. Double click the application to start the game.