- HD 1080
- Runtime: 70m.
- Status: Released
0
- Languages: en
- Country: United States of America
- Director: Bill Rebane, Herschell Gordon Lewis
- Stars: Henry Hite, Phil Morton, Lois Brooks, Rork Stevens, Robert Simons
- keywords: mutation, radiation, alien, murder, astronaut, giant, edited from unfinished film, derogatory
- Production_studio: B.I. & L. Releasing Corp.
- Slogan: An astronaut went up- a "guess-what" came down!
- The Monster a Go-Go! is featured in the top rankings of 1965
- #39 in Top Horror Movies of 1965
American astronaut Frank Douglas mysteriously disappears from his spacecraft as it parachutes to Earth. He is apparently replaced by or turned into a large, radioactive, humanoid monster. A team of scientists and military men attempt to capture the monster.