I'm curious - seeing as you were also very young back then, actually very close to the very same age I was when I played it - were you also amazed when you discovered the first part wasn't the full game, and that you had several more to go?
A lot because my English was so poor back then, I spent *ages* on that first chapter, so the game felt like it had been really long already before I had finished the first chapter... so for some reason I assumed it was all there was, despite it being called "Part 1"... maybe I figured there would be a "Part 2" sequel or something, can't remember that part.