http://docs.com - This was the first misstep the movie made. The battle room was the coolest most entertaining part of the book but the movie had only a couple quick scenes really only one extended scene. This was a key aspect of Enders development as the prodigy he was but the movie simply brushed through it. Very disappointing especially considering the one scene they did show was cool. The battle room is an enclosed arena where two teams shoot each other down the combatants suits freeze when struck rendering them useless for the remainder of the battle while trying to get to each others base all while in zero gravity.