Through August 15th, you can score a free Redbox video game rental valued up to $3! Simply go to CertifiKid.com, click the “claim free rental” button, then quickly create a free account on the site. After that, you'll be logged in and need to go through the checkout process. Once completed, your code for a free Redbox video game rental can be found under My Vouchers on your account page!
Note that while checking out, it asks for your “billing” information, but it's really just your name and address. No credit card is required in order to get the free code.