Monster Island

In postwar Japan, Godzilla brings new devastation to an already scorched landscape. With no military intervention or government help in sight, the survivors must join together in the face of despair and fight back against an unrelenting horror.

French nuclear tests irradiate an iguana into a giant monster that viciously attacks freighter ships in the Pacific Ocean. A team of experts, including Niko Tatopoulos, conclude that the oversized reptile is the culprit. Before long, the giant lizard is loose in Manhattan as the US military races to destroy the monster before it reproduces and it's spawn takes over the world.

The giant monster Volcanodon reappears after many years

The Sazer-X team find a mysterious boy who claims to have amnesia, meanwhile, an ancient evil has awakened and begins consuming the people of earth. Bosquito, an extremely powerful evil being from ancient times has absorbed the power of the Justirisers and is using it to fuel its own minions. Sazer-X, the Justirisers, and the Gransazers must work together to defeat this villain and save the planet.

The members of the Super GUTS force, one of whom is secretly Ultraman Dyna, are in the middle of a losing battle against an enormous monster on the surface of the moon, when suddenly a spaceship appears and saves them by zapping the beast. The crew of the ship claim to members of the world peace force that originally created the Super GUTS force, and they invite the GUTS members to enter their brainwave patterns into the ship's battle computer so it can be a more effective fighting system. It sounds like a good idea, but could they have some other plan up their sleeves?