The world of the video game is changing - and it's making developers a fortune. The add-on is generating billions of dollars a year - with fans spending even more for everything from extra lives, to extra outfits. CGTN's Phil Lavelle reports from Los Angeles on what the add-on actually is and what it means for the future of the games industry. Subscribe to us on YouTube: http://ow.ly/Zvqj30aIsgY Follow us on: Facebook: https://www.facebook.com/cgtnafrica/ Twitter: https://twitter.com/cgtnafrica