Game cards provide an easy alternative for getting Pet Cash, especially for those people who don't have access to credit cards. Instead of partaking in offers that may or may not successfully pay off, game cards guarantee that you'll be able to redeem them for in-game cash. They also make perfect gifts for the Zynga game fan in your life. These cards can be redeemed in any Zynga game (not just PetVille and Treasure Isle) but you will only get the bonus mascot pet if you redeem yours in PetVille.
Have you redeemed a game card? What does the PetVille Mascot look like in your pet's home?