This may be a little bit late but Toys R Us is having a Buy 2 Get 1  free sale on all video games, video game accessores, game guides, and gaming-themed T-shirts.

Here is a link to the promotion right here.

You can essentially save 33% off of your total purchase if you find three games of the same price, and don't forget about Batman Arkham City that is set to release 10/18/11. 

This promotion is valid 10/16/11 to 10/22/11.