San daikaijû: Chikyu saidai no kessen/Ghidorah, the Three-Headed Monster (1964)

King Ghidorah arrives on Earth and only the combined might of Godzilla, Rodan, and Mothra can stop him.

Horror Express (1972)

Professor Saxton’s latest find turns out to be a still living Evil who will stop at nothing to get what it wants.