Buy One, Get One @ 50% Off!

Right now at Amazon, buy one in-stock video game for Nintendo Wii, Xbox 360, PlayStation 3, Nintendo DS, Sony PSP, or PlayStation 2 and get a second game of equal or lesser value for 50% off. (The discount is taken at checkout.) And with free shipping on orders of $25 or more, there are some great deals to be had here.
More than 180 titles are eligible for the discount. Including:

Killzone 3: Helghast Edition

Buy One, Get One 50% Off

For a limited time, when you one qualifying game from this list you can get a second qualifying game, also from the list below, for 50% off.

To qualify, add two of the qualifying games from this list here into your cart and checkout (do not checkout via 1-Click). The discount will be taken off the lower priced item and reflected during checkout.

Offer good while supplies last, or until terminated by Amazon. Limit one promotional credit per customer.