Geronimo1967
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...