https://m.imdb.com/title/tt0095958/There are two versions to this film. The first is the original cut that was only released in European theatres. The European version was then released in Japan as
Rampage (1987) (Uncut) [PILF-1043] and then later in 2010 on a Polish DVD by SPI International. The film was then shelved in the US because the distributor DEG went bankrupt until five years later in 1992 the director William Friedkin re-edited the film that came out 4 min shorter with different scenes and a different ending for the US VHS and later LD release
Rampage (1987) [LV15113].
Besides having a different ending, I don't know what the differences are between the European and US versions are. The best place to look would be
movie-censorship.com but they don't have it listed there.
If anyone who has seen both versions of this film and can give a detailed or brief summary on what the differences are between the two, or knows where I can find another proper comparison site, so that I can add the US release to this thread
here would be greatly appreciated.