Hardee's promotion was when the Hardees restaurant food-chain supported Scribblenauts Unlimited. Hardees promoted Scribblenauts Unlimited in their Cool Kids combo meals. Whenever a meal was purchased, kids would receive a package and a toy inside. On the Cool Kids website they introduced several things such as a gallery, a poll, and other features.
- Toys included Maxwell's Amazing Bingo, a Maxwell Figure, Rolling Maxwell, and Challenges and Activities.
- The Cool Treats section of the site allowed purchasers to enter a promo code to receive a limited edition prize.