Gaikai has a decent selection of game demos you can stream through a browser, but it doesn't usually have much in the way of hot new releases. That's starting to change, though, as Mass Effect 3 is now available on the service exactly one month after its initial launch. As with any other demo on Gaikai, Mass Effect 3 can be streamed for free in any of the major web browsers. Streaming may not be the most ideal way to play games just yet, but since it's only a demo you can at least play long enough to decide whether or not you want to see the game through to its controversial ending.