This game does actually contain a hidden Nazi mode. (Apparently it took quite a few years to figure this out.) You can follow David Welbourn's walkthrough to find how to unlock it.
None of the reviews here explicitly mentioned that, so I wanted to make sure someone did.
The game is sort of a practical joke. FormerlyHiddenNaziMode.zip
contains a deceptive PDF, Hidden Nazi Mode: Anatomy of a Failure, falsely claiming that the author has removed the Nazi stuff, and providing an incorrect command to activate Nazi mode. The zip also contains deceptive source code, which does not contain a hidden mode. (That source code is not the real source code used to build the zblorb
file in the zip.)