 Due to the technological limitations of the Game Boy Advance cartridge size , voice acting was kept to a minimum . Though many characters from Kingdom Hearts were voiced by the cast from before , the Japanese version used the following voice actors : Keiji Fujiwara as Axel ; Tatsuya Kando as Vexen , Marluxia , and Lexaeus ; and Rieko Katayama as Larxene . A limited amount of voice acting was added only for the battle sequences . Voice clips from the first Kingdom Hearts were inserted into Chain of Memories . The English version is absent of dialogue ; voices during Organization battles are replaced with simple grunts , laughter , and other battle cries . 
