If your video gaming archive possesses a few shameful gaps, you might want to turn your attention to a promotion Gamestop's running from today until Saturday. Both online and in-store shoppers who purchase two used games or accessories can grab a third used item of equal or lesser value for free.

If you're placing an order online, all you have to do to be applicable for the offer is input the code "B2G1FREE" when checking out. If you're placing an order in a brick-and-mortar location, you can still say the phrase "B2G1FREE" while the cashier is ringing you out, though it's completely unnecessary and will likely garner you some very confused glances.

This article was originally published on Joystiq.

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