We're not going to say that the two games released on Xbox Live Arcade this week -- this week being Christmas -- were released as afterthoughts. However, they probably aren't games you've been dying to play. You can choose between block-pushing puzzle goodness or alien-blasting action in Polar Panic or 0 day Attack on Earth, respectively. Polar Panic will set you back 800 ($10), while 0 day Attack on Earth expects 1200 of your hard earned points ($15). Watch the latest XBLA in Brief and see if either demands your attention. Shortcut: Download the trial version of Polar Panic [Via Xbox.com] Shortcut: Download the trial version of 0 day Attack on Earth [Via Xbox.com] [iTunes] Subscribe to X3F TV directly in iTunes. [Zune] Subscribe to the X3F TV directly. [RSS] Add the X3F TV feed to your RSS aggregator and have the show delivered automatically. [M4V] Download the M4V directly.