Whatever line there was between retail games and downloadable titles has essentially been torn down.

You can now download full retail games straight to your console thanks to the new Xbox 360 Dashboard Update. And the Xbox Live Summer of Arcade has been rock solid.

But wait. There’s more.

The final release of Summer of Arcade hits this week - on Wednesday precisely. And it’s been getting stellar reviews.

IGN calls it “one of the best games yet in 2009” - that’s out of all games, not just XBLA titles. MondoXbox says it’s"capable of rivaling even many of the retail games out there.”

Shadow Complex further blurs the line between retail and downloadable games - if not completely destroying that line.

Shadow Complex is a Metroid/Castlevania-style game that features 2.5D side-scrolling action gameplay. Based on the praiseworthy reviews, this one sounds like a winner.