content: The main difference in this movie is Jigsaw. In the first one you didn't know who he was and saw very little of him. In the second you see quite a bit of him. This is both a plus and a negative. On the positive side jigsaw is a very interesting character and is played very well. But on the other hand the mystery of, who is he?, adds something to the first movie that this one is missing. This installment has just as many well thought out traps and Scenario's. And yes at the end you get just as much of a suprise as the first. One other diffence between Saw II and Saw was that in the first one I was able to guess nothing! But in the second I was able to guess one or two things. Nothing major though.If you like the first Saw go rent this one right now!