I remember that I saw a comercial for AO just as it came out, before I even had a PSX, and I wanted it badly. I think it was because the game looked so complex, plus it had made-up creatures from a different world and beautiful environments. I finally rented the game when I did get a PSX, and I loved it because of the reasons above and the characters. Of course, Molluck immediately became my fav character because he's so eeeeevil
Oh, and while playing the game with my dad, he found out how to make Abe fart and that made us laugh for at least a half an hour. So, I was hooked from that moment on, and when AE came out, I loved Oddworld even more for its complexity and amazing characters, 'specially the Glukks.