Well, pressing "x" was supposed to be just an exit button to leave to the main menu, but something goes really wrong this day and there is a glitch when you can't return to normal game ones you exited, and must restart the game.
And, about blue zones, i you will touch it, you will have a secret ending. Really secret ending. This is my greatest secret i never told to anybody. But the blue zones have really secret ending. It's so secret that i not allow anyone to spoil this ending to another people.
P.S. The purple zone cutscene is more monoloque than dialoque( at least for me).