Aside from the multi-chapter layout, the most significant change in game structure is the simplification of user interface by the use of smart pointer. When playing the game, the pointer lights up when passed over an object that can be used. Players can get or use objects and talk to characters by directly clicking on them, whereas previous games required the player to select an action icon and then click on the environment, and can click on the environment without indicating which parts of the game could be interacted with.