could you give me one of the registration code?

What you are asking is not only unethical but illegal. Why on earth should I give you something for free that I paid for?

Sikky,

Asking for registrations codes is a violation of the Terms of Service you agreed to when you set up your PlayFirst account. It is fine to ask what codes are and how they work, but both you and any user displaying one for you would be immediately suspended from the boards and have your PlayFirst accounts suspended.

As previously mentioned, you can play any game on the PlayFirst site for free for 60 minutes by using the "download" option. If after your trial period you like the game and want to keep playing, you'll need to purchase it. Coupons and other insentives are sometimes announced on the site, so keep an eye out for good deals!

Thanks,
Nemone