Found this on PC Gamer, if anyone is interested. All you need to do is register and give your? address. http://www.telltalegames.com/bttfoffer
Thanks for that man, left some rep. EDIT:http://www.telltalegames.com/samandmax/nightoftheravingdead Sam and Max: Night of the Raving Dead also free
its http://www.backtothefuturegame.com/offer Click on REDEEM That should then load to "Your Shopping Cart" Enter 121GIGAWATTS in to the coupon field, click "Apply Coupon". Then, "Proceed To Checkout". Fill out your e-mail and address info for a TellTale Games account, "Proceed To Next Step"... note the BTTF episode isn't out yet, but I got "Sam and Max: Night of the Raving Dead" as murraynt suggested at the same time hehe
The URL is http://www.backtothefuturegame.com/offer but it only seems to work some of the time. Eventually you should end up at http://www.telltalegames.com/bttfoffer
The guy voice acting for marty mcfly sounds so much like mike j fox its unreal; http://videosift.com/video/Marty-McFly-voice-actor-for-new-Back-to-the-Future-game?loadcomm=1
wow, yeah. That is scarily, scarily similar. In fact it probably sounds more like marty than Michael fox can do now.