 Conceptual work by Yusuke Naora , the producer of the Code Age franchise , began in 2002 ; and Code Age Commanders was officially announced in the April 2005 edition of the Japanese gaming magazine Famitsu . The development team was nicknamed " Warhead " and specifically assembled for the game , with its lead developers Yusuke Naora and Toshiyuki Itahana belonging to the art field rather than project management . Several connections to the mobile phone game Code Age <unk> and the manga Code Age Archives were put throughout the game , so that information learnt from it could be used by players and readers of the other installments to understand the full picture . 
