You enter it where you enter all your codes ( not book codes ) and then cards will be added to your penguin.
You enter secret codes. From books
Club Penguin codes are codes that you can enter online. There are a variety of codes like Card Jitsu Card Codes, Coin Codes, and Book Codes. You can also enter Membership Card Codes if you click the Members tab on the homepage.
You have to buy card pack in stores and enter their codes in Club Penguin.
You have to log off and log on again.Then it will ask you if you want to or not.
Usually at toys R US or target
To get the cards you must buy a toy. It will come with a code and then you enter it.
Club Penguin Card Jitsu codes are to be kept to yourself.
you click unlock items online button and log in to your penguin and click i have a code
A Club Penguin Card- Jitsu tin has special codes to unlock cards online.
become a ninja. I became a ninja but nothing happened.