“僕のゲームもジョージ・ミラー監督からいろいろな遺伝子を受け継いで作られているんです。ミラー監督がいたから僕がいるというか” JA Original quote in Japanese; the summary below carries the meaning.
While meeting George Miller in Japan during the promotion of Mad Max: Fury Road, Kojima told him that his games are made inheriting various genes from the director, and that if he exists it is because Miller existed.