1. *Extra 16% Off Pre-Owned Games from GameStop. Coupon Code: CAG16. Price: not specified. Discount: 16% Off . Categories: Games.Deal Rating: 5 Stars out of 5. Store Rating: 5 Stars out of 5. Deal Recommendation: Get it Now! Available Until: limited time only. Thoughts: Get an extra 16% off all in-stock used games & DVDs for a limited time only, so shop right now and save your money! More Thoughts: Nice extra offer!