Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster
A massive sea creature called "Dragonsaurus" has suddenly appeared, spreading fear across the ocean depths. To face this new threat, Great Mazinger, Grendizer, and the Getter Robo G team unite. However, their mission grows more difficult when Dragonsaurus devours Boss Borot and heads straight for Tokyo.
