I didn't dislike the movie because it was different from the book/radio play. Actually, the DOS game was my introduction to the series, not the plays or the books. From there I got my hands on the radio plays, enjoyed them, and then went out and bought the one volume hardback of the "trilogy".

That was one of the cool things about Adams, I really liked how each retelling of the story was entirely different. That is one of the marks against the recent three phases of the radio series, they were not written by Adams, and so were followed their written counterparts very closely.

As for the impossibility of the Babel Fish puzzle, it isn't impossible. I beat it without a walkthrough. That was one of the best parts of the game, it had me cracking up, and then before too long nearly crying.

Interesting they have graphic java versions of it now. Not even sure how that would work, I am assuming they are just still images?