Godzilla: Terror of Mechagodzilla

Continuing after the end of Godzilla vs. Mechagodzilla, Interpol agents, led by Inspector Kusaka, search for the wreck of Mechagodzilla at the bottom of the Okinawan Sea in the submarine, Akatsuki, to gather information on its builders, the aliens of the third planet from the black hole. But, the Akatsuki is suddenly attacked by a giant aquatic dinosaur called Titanosaurus, and the crew is apparently lost.

In response to the incident, Interpol begins to investigate. With the help of marine biologist Akira Ichinose, they trace the incident and Titanosaurus to a reclusive, mad scientist named Shinzô Mafune, who was forced to leave the institute, and now wants to destroy them as well as all of mankind. When visiting his old house in the seaside forest of Manazuru, they meet Mafune's lone daughter Katsura, who tells them that not only is her father dead, but she also burned all of his notes on the giant dinosaur (at her father's request). But unbeknownst to them, Mafune himself is alive and well, visited by his scientist friend Tsuda, who turns out to be an aide to the new black hole alien leader Mugal, who is leading the project to quickly rebuild Mechagodzilla. Mugal offers their services to Mafune, so that his Titanosaurus and their Mechagodzilla 2 will be the ultimate weapons. The ultimate goal of this new wave of black hole aliens is to wipe out mankind and rebuild cities around the world as a high-tech dystopia.

But things are complicated for both factions when Ichinose falls in love with Katsura, and unwittingly giving her Interpol's secret information against Titanosaurus, the new Mechagodzilla, and the aliens. We also find that Katsura is actually a cyborg, and Mugal may have use for her.

In the course of the film, Interpol discovers Titanosaurus' weakness: Supersonic waves. But when they construct a Supersonic Wave Oscillator, Katsura sabotages the machine, prompting Interpol to hastily repair it before Mafune and the aliens unleash Mechagodzilla and Titanosaurus on Tokyo.

And when the situation gets desperate, Godzilla comes to the rescue. While Interpol distracts Titanosaurus with the Supersonic Wave Oscillator, Godzilla is able to destroy Mechagodzilla and then has a final battle with Titanosaurus while he is confused by the Supersonic Wave Oscillator. Godzilla blasts Titanosaurus with atomic ray and Titanosaurus then falls back into the water, his death was never known, while Katsura activated power off to destroy MechaGodzilla. Godzilla Then destroys MechaGodzilla In single blast killling Katsura in the process

Then it's the end.

This film has a good sound track

Here is the soundtrack