You should just F*king run to Amazon right now to get in on this F.E.A.R. 3 deal. For the next 2 hours, that's 9AM Eastern until 11AM Eastern, you can snag the game for just $19.99 on the Xbox 360, PlayStation 3 or PC.
This is a heck of a deal for one of my personal favorite co-op games in recent memory, one in which I played through the campaign twice. We gave the game a solid 4 out of 5 for it's co-op gameplay.
F.E.A.R. 3 supports two player local co-op through both the campaign and survival modes as well as 2 player online campaign co-op and four player online survival co-op which includes the infamous F*cking Run mode. So hurry - get to ordering or you might make Alma angry...and you won't like her when she's angry.