First i want to say i enjoy on what GOG is doing when it comes to game preservation. This game is not that good as what people say, it's held up by nostalgia. There are way too many enemies in some of the rooms, the zombies are bullet sponges, and the ammo is scarce. It wants to be an action game, and a game where you preserve the ammo at the same time. The port itself is good, and bad. You can change the controls which is nice, but the models are kinda bad looking. There should be an graphical option where it looks like the way it would on a ps1.