The spaceship AAB-Gamma is dispatched from FAFC headquarters in Japan to make a landing on the planet Mars and investigate reports of UFOs in the area. As they near the red planet, they encounter a mysterious UFO that coats the ship's hull with unusual spores. Taking one of the specimens back to earth, it soon develops and grows into a giant chicken-lizard-alien monster that tramples Japan.
Reports of unidentified flying objects near Mars intrigues the Japanese based "FAFC" which decides to send a ship to investigate. The American and Japanese crew do, indeed, encounter what one describes as a "giant fried egg" before landing on the planet and discovering what looks like a breakfast roll. Rudimentary tests suggests it's inert, and they decide to bring it home for further investigation. Now there's their first mistake... Once back home and in the lab, our baking starts to, well, hatch - and what emerges is a monster that feeds on energy. It doesn't care how it gets it, or who or what gets in the way and so is soon rampaging through the obviously cardboard sets of cities and industrial complexes growing ever larger by the charge. Can the boffins find a way to stop it before it reaches an huge nuclear power plant and consumes the entire nation? The beastie itself has something of Egyptian mythology to it - the head of a snail, then some chicken, then some lizard - with bulging eyes and it can breathe fire! The acting and dialogue? Well both are bland and forgettable, but they don't really matter. This is all about the perfectly acceptable gizmo/gadget effects, some warplanes and missiles on piano wire, plenty of mini-pyrotechnics and, of course, a creation straight out of "Dr. Who". No, it's not good. It's far too long and you will never remember watching it, but if you like this kind of cheap and cheerful sci-fi horror, then you ought to enjoy it - just aim low.