US home video version has new credits and dubbing and features footage deleted from from 1969 television version.
The AIP-TV version takes out the infamous Gamera song.
SPOILER: In some versions, when Barbella is injured, Florbella reminds her of a law that "useless people have to go", and shoots her. In other versions, Florbella doesn't say anything & just shoots Barbella.
The AIP-TV version deletes some violent footage from one of the monster battles wherein Guiron chops Outer Galaxy Gyaos into pieces.