This week’s deal on XBOX Live Arcade is first-person puzzler Portal: Still Alive. It’s a 33% cut from its price of 1200 Microsoft Points ($15) to 800 Microsoft Points ($10). Most of you may have or have played the original Portal from The Orange Box released back in October 2007. This incarnation of Portal is an extra few levels added to the original and if you don’t own The Orange Box I say, get it. For ten bucks… this is a steal.