The key codes are on the back of the manual.
Buy the game.
The Command and Conquer Tiberian Sun game has the expansion called Firestorm which adds additional levels and units to the game. The Command and Conquer Generals game has an expansion pack called Zero Hour.
Command and Conquer: Generals Zero Hour is an expansion to Command and Conquer Generals. Install Command and Conquer: Generals then install the expansion pack to play the expansion. In the menu where you select the game you want to play, the button that says "Command and Conquer Generals" should have a button directly below it that says something like "Command and Conquer Generals Zero Hour" PS. this is for command and conquer: the first decade. Other wise you will need to download the separate game or buy a separate disk.
To save in Command & Conquer: Generals and its expansion pack Zero Hour. Open the menu while in-game by pressing the 'Esc' button on your keyboard and select the 'Save game' button from the menu.
There is a single game disc unless you have the deluxe edition that comes with its expansion pack on a separate disk as well.
You acquire them with the disc when you purchase the game.
Pets is an expansion pack.
AOE 1 and its expansion pack AOE 2 and its expansion pack AOE 3 I'm not sure if it has an expansion pack
The Nightlife expansion pack.
The first expansion pack released was University.
No, You Can't you have to use the expansion pack disc
you need the pet expansion pack
no, the ocarina of time does not need the expansion pack.