It looks like the cavalcade of demos on Xbox Live continues today as Sierra has released a demo for their upcoming Sci-Fi FPS TimeShift. I played the game at PAX over the weekend and it`s not bad, the hook for the game is the ability to manipulate time and pull off cool attacks like stealing weapons from bad guys while you pause time. Not a bad game from what I`ve seen so far but it`s not exactly Halo 3.