. "Ninja Ry\u016Bkenden'' (''Ninja Gaiden'')''" . . "home edition" . . . . . "Ninja Gaiden (NES video game)" . . "Ninja Ry\u016Bkenden" . . "''Ninja Gaiden''" . . . . . . . . . "Shadow Warriors" . "Ninja Gaiden" . . . . . . . "Gaiden" . . . . . "first ''Ninja Gaiden'' game" . . . . "''Ninja Gaiden'' (''Shadow Warriors'')" . . . . "home console counterpart" . "Ninja Gaiden: Master Collection" . . . . . . . . . . . . . . . . "''Ninja Gaiden'' (NES video game)" . . . . . . . . . . "Ninja Gaiden (NES video game)#Development" . . . "Ninja Gaiden (NES video game)" . . . . . . . . "1988-12-09" .