Yuusha-Ou GaoGaiGar Gaiden: King J-Der, Shakunetsu no Fushichou

Also known as: 勇者王ガオガイガー外伝　キングジェイダー　-灼熱の不死鳥-, The King of Braves GaoGaiGar Side Story: King J-Der -The Burning Phoenix-

by Shirou Tsunashima, Yoshitomo Yonetani

As a result of the battle against the 31 Machine Primevals, the warriors of the Red Planet are flung to the The Void at end of the universe. There, they encounter J-Battler, a silver ship of the same model as J-Ark. Giant Mechanoid vs. Giant Mechanoid! Who will win this showdown of the century?! (Source: Firecross, translated)