"There are different ways to get through the game's story. Quantic have implemented SIXAXIS control in order to open windows, hit objects, and other actions. You could actually hear what's going on in the mind of the main character, meaning her thoughts. It lets the player know what choices are available to take in the game. The background items and objects in any area are fully interactive. That means all objects can be used, any door can be opened, it is very interactive.