Firstly, it is very, very clear that the game has had to pander to console hardware restrictions. That's why all the levels are generally perfectly linear corridors, and really short.
Secondly, comments such as the one coming from this genius make me laugh:
Duh. You're playing a pirated development build. Your comment is null and void.
Correct. The PC one says press ENTER to begin... HERP DERP...