There are rewards credit cards which will allow you to earn rewards on purchases at GameStop and on all other purchases. You can choose to earn cash back, bonus points or miles rewards. The card may also have 0% interest rate introductory period. The regular APR usually varies depending on your credit score. For example, if you choose a Discover it credit card, you will be able to earn 1% cash back on all purchases and 5% cash back in rotating categories.