If you're an Xbox 360 owner, you can snag the Mass Effect 3 demo now -- PC and PS3 players will have to wait a bit later in the day to grab Bioware's early taste of the Reaper invasion of Earth. The demo features a mission from the invasion and another later in the game. The demo also supports Kinect voice recognition.

Additionally, a new live-action trailer is set to premiere during this week's episode of The Walking Dead on AMC. A teaser trailer for the commercial can be seen above.