When I was a child, I watched a movie which was dubbed in my native language.
In that movie, a giant creature looking like Godzilla or a dinosaur came from the sea. The creature laid an egg and the egg was taken by scientists for research.
To attack that creature, the scientist built a giant robot which looked like the same creature. At some point in the movie when the original creature and bot were fighting, there was insufficient power for the bot and an external power source was used.
Does anyone know that movie?