A strange, cut up and modified version of the PC game. I'm not often in a position to comment on the differences between a console and PC version of a game, but I happen to have played both in this case. The PC game is, without doubt, my favourite of all time. This version adds lots of strange little rooms to cope with the excess loading times (which are all too frequent).
Thank God the PC game was produced before the console version, unlike modern day games whereby truly epic games are dumbed down for the console market before they even reach the shelves of PC gamers. Play the PC version, it's a lot more fluid.