Yes. There are lots of mistakes in Polish words or phrases :-( Wrong phrases are mainly about hidden passages to Minus Worlds :-(
Don't complain about them. I know that there are a lot of language mistakes, but count that there are also a lot of languages to care on in this game, and making graphics for every object that needs a translation takes a lot of time. As I stated many times, if there are language mistakes, please let me know them, like 12345678904441 did now.
I like to play, but creating my own custom games is my life. When building your own stuff becomes a hobby, you have all doors opened. Your only limit is your imagination. Peace.