BB-8 moved in all directions on stage at Star ##walk Celebration in Anaheim . director JJ Abrams said a real robot and not CGI was used in the film . Audience were mesmerised by the robot but it 's a mystery how it works . robots resemble giant robotic which has another magnetic magnet on top .
BB-8 moved in all directions on stage at Star Wars Celebration in Anaheim . Director JJ Abrams said a real robot and not CGI was used in the film . Audience were mesmerised by the droid but it 's a mystery how it works . Suggestions include giant robotic ball has another magnetic robot on top .