The review said this one is much longer than the first, and I'd have to agree based on how long it has been taking to complete missions. You don't even get a weapon until you get fairly well into things. Even knowing how to play, the game keeps the pace fairly slow at first. Some buildings have been made more complex to climb. The guards are smarter such as: they will actually search for you in haystacks. There are new ways to "distract" the guards to get you into places, and hiding within a crowd is a bit easier. Day changes to night now, and that means a time for changing of the guards, but that also means you have to wait.