Zak McKracken and the Alien Mindbenders Features

I wonder if I'm getting stupider. Zak McKracken and the Alien Mindbenders came out in 1988, when I was 11 years old. It seems impossible to believe that at the age of 32 I can have become worse at games. And yet while my memories of playing Zak Mak when it first came out are extremely hazy, I certainly don't remember getting stuck quite as often. What I do remember is that I really enjoyed it. I've since been told by those who should know that this cannot possibly have been true. So I've gone back to find out.