On March 29, 2003, Red Faction (PS2) was put on the infamous German index by the BPjS. For more information about what this means and to see a list of games sharing the same fate, take a look here: BPjS/BPjM indexed games.
The game's engine is called Geo-Mod, which allows real-time terrain destruction.
There's a hidden movie in the game's data\movies\ folder. It's a executable file named technochunk.exe,and running it gives you a short movie of various game characters dancing to techno music.
Although hailed as its main feature, the GEOMOD engine is really the SECOND 3-D engine to allow deformable realtime terrain. The first engine was part of an independent game, Tread Marks.
The german PC version of Red Faction is heavily cut. The flame thrower is missing and there is no blood at all. The game still got an "Age 18+" rating.