Godzilla comes to the rescue when spacemen send a rebuilt mechanical Godzilla to attack the Earth. It is the 15th film of the Godzilla franchise, and features the fictional monster characters Godzilla, Anguirus, and features the fictional monster characters Godzilla, Mechagodzilla, and Titanosaurus.

References:
https://en.wikipedia.org/wiki/Terror_of_Mechagodzilla