Portal: Still Alive now available for download from the Xbox Live Marketplace. Portal: Still Alive is available in all Xbox Live regions and costs 1200 points.

Portal: Still Alive features the full award-winning Portal single player game from Valve, plus a new challenge mode. Designed to change the way you approach, manipulate, and surmise the possibilities in any given environment, Portal has earned over 70 industry honors for its innovative gameplay, with more than 30 “Game of the Year” awards.

Break the laws of physics using “portal” technology to solve puzzles and survive in this darkly comic story weaving adventure with brain-bending puzzles.

And since we’re in a Portal sort of mood, it gives me an excuse to post one of my all time favourite YouTube videos…

Warning: Video may contain game spoilers if you haven’t played Portal before…

Warning, contains strong language.

Master Chief Sucks at Halo