Supporting your child's Nintendo DS craze can be an expensive undertaking. Toys 'R' Us has your back with a great savings opportunity. This week only, stock up on select DS titles that are now priced at just 2 for $40. Just a few of the super fun games in the sale include Squinkies with Toy, Petz Nursery 2, Transformers: Dark of the Moon Autobots with Car, and several others. Each game is showing a regular retail price of $29.99, making this an almost $20 savings. Sale ends 10/01/2011.