saving measure, stock footage from  _San daikaijû: Chikyu saidai no kessen (1964)_ (qv),  _Kaijû daisenso (1965)_ (qv), _Kaijû sôshingeki (1968)_ (qv) and  other films were incorporated into the film (these films feature  scenes of Godzilla, King Ghidorah and Angilas). Also the entire  score of the film was composed of a re