Star Wars: The Force Unleashed for Xbox 360 for $19.98. Here is a screenshot, along with a review of the game for your reference. The game in Nintendo Wii, PlayStation 2, or Nintendo DS is available for $19.99 and in PlayStation 3 for $29.99 shipped. Shipping is free on orders over $25. If needed, use this Filler Tool to pad the order for free shipping. Note that this deal is only valid on 6/1. As a comparison, Walmart has the game in any platform for over $35.
This deal has been revised.