Godzilla comes to the rescue when an alien race rebuilds Mechagodzilla to destroy Earth's cities. A traitorous scientist gives them a second weapon: Titanosaurus.
Terror of Mechagodzilla (released in Japan as Mekagojira no Gyakushū "Counterattack of Mechagodzilla") is a 1975 Japanese science fiction kaiju film featuring Godzilla, produced and distributed by Toho. The film is directed by Ishirō Honda, with special effects by Teruyoshi Nakano and stars Katsuhiko Sasaki, Tomoko Ai, Akihiko Hirata, and Gorō Mutsumi, with Toru Kawai as Godzilla, Ise Mori as Mechagodzilla, and Tatsumi Nikamoto as Titanosaurus. It is the 15th film in the Godzilla franchise and the final film in the Shōwa series, and serves as a direct sequel to 1974's Godzilla vs. Mechagodzilla. The film was the least successful of the entire Godzilla franchise.
The film was released in Japan on March 15, 1975 and received a limited theatrical release in the United States in 1978 by Bob Conn Enterprises as The Terror of Godzilla.