Comparison between the uncensored R-Rated version released by Front Row and the uncut German VHS released by IMV (=Unrated).
There are 3 missing scenes with an overall runtime of 16 seconds.
As it seems, the movie was only released as censored R-Rated version in the United States. The German VHS features the unrated version.
NOTE: According to the German webside OFDB.de, the DVD box "50 SciFi Classics" includes the movie in its uncensored form. However, this information still might not be true so if you have any further information - please let us know!
The attacker gets decapitated by the guillotine (happens off-screen). The only thing you see are his twitching legs as well as blood that splatters against the guillotine.
After Eckhard was impaled on the fence you see a close-up shot of his corpse. In order to ensure a smoother transition the editors cut the following shot of Michael out as well.
After Michael walked through the shot you see Eckhardt again. After that, Michael walks past him and wants to go through a gate when he's suddenly attacker breaks in on him - Michael gets kicked and punched a few times.