Nice!!!
I love this game, I can see how addicted to it people could become! I played it for about half an hour solid before I even realised how long I spent on it! The graphics are simple, yet slick.
The sound is clear and sleek, and the game is put together very well!
The only thing I will say about it is that it looks very similar to "CODE", which was released as a beta version by another Newgrounder...
Pretty cool though!
Oh, if there were a difficulty select that would be great!