Déjà Vu/Gameplay

Computers
A majority of the computer versions of the game utilize the mouse for point and click operation. In general, the left mouse button selects an item and the right mouse button cancels a selection. Items can be double clicked to examine them, and obvious doors and windows can be double clicked to open them. Items can be dragged to and from your inventory, and any exits marked on the exits window can be double clicked to instruct your character to travel from one location to another. Occasionally, the keyboard must be used, particularly when requesting a specific address to a taxi cab driver.

NES
The NES version of the game has been adapted for use with a game pad.
 * : Use the direction pad to move the cursor around the screen. In the main view, the cursor can be moved freely, but when you are out of the scene view, the cursor locks onto particular selections throughout the interface.  The cursor will warp from one side of the screen to the other, including top and bottom.
 * : Press the A button to select an object in the scene, an item in your inventory, or a command from the interface.
 * : Press the B button to cancel your selection.
 * : Press Start to begin a new game.
 * : Not used.

Commands

 * Examine:(Shortened to Exam. on the NES.) Use Examine to take a closer look at items that are present in the scene, or within your inventory. Examining them can help you determine if items are important, or if they may have some use to you in the future.  Examining objects can also help reveal more objects that have yet to be discovered.  On mouse-driven computers, this can be performed by double-clicking on particular items.
 * Open:Use this command to open a door, window, or other entrance that is blocking your passage. You must also use this command to open any container that you wish to examine the contents of.  On mouse-driven computers, this can be performed by double-clicking on the item in quest.
 * Close:Although the need to close an item is small, you can select this command to close any entrance or container that you have opened.
 * Take:Only a command in the NES version, use it to add an item to your "Goods" inventory. On mouse-driver computers, this action is performed by clicking and dragging an item from the scene into your inventory window.  From there, you may examine items, or open containers.  Additionally, items can be transfered from one container to another with the mouse.
 * Leave:The opposite of taking, leave is another NES-only command which allows you to drop an item in your "Goods" inventory to some location in the current scene. This can't always be performed with every object or in every scene.  On mouse-driven computers, simply drag an item from your inventory to the scene to perform this action.
 * Speak:Use this command to engage in conversation with another person. On mouse-driven computers, you must first click the command, since double-clicking on a person in the scene merely examines them.
 * Operate/Use:Select this command if you wish to make use of an item that is visible in the scene, or if you wish to utilize an item in your inventory on another item. For example, if you wish to unlock a door in the NES version, you must select this command first, then choose a key, and then select a door.  In computer versions, you may first select the key, then click on the command, and then the door.
 * Go/Move:Use this command to travel from one scene to another. In the NES version, you must select the command, then choose one of the movement options presented in the movement window below.  On mouse-driven computers, it is sufficient to double-click on the box which indicates the exit you would like to take.
 * Hit:Occasionally, you will have to rely on good old fashioned brute-force when nothing else will do. Choose this command, and then select your target, be it a person or an object, to carry out your attack.
 * Consume:Use the consume command to ingest an item that you have in your inventory. On the NES, this is equivalent to selecting the use command, and choosing yourself as the target of an item.