Fun fact: the Flying Head you meet in the dreams speaks fragmented Polish sentences. I've heard the following ones:
Być może, być może (perhaps, perhaps) Idź po polu (go across the field) Stanisława ('Stanisława' is a Polish female name) Gdzie indziej (somewhere else)
There was more but these ones appeared most often. I think some other characters speak French and Chinese, among others. I wonder what other languages were used to make gibberish speech and if they were recorded for this game or just taken from existing recordings. Anyway, hearing the character speak Polish sentences unrelated to the on-screen text was really odd and distracting.