ARS: It took Bioshock 2 a little longer than the first game to draw us in, but once we saw the exterior of Rapture through the grimy glass of the Big Daddy's helmet, it was clear that this is a world that still has more secrets to tell. Just like Jurassic Park, however, it's going to get harder and harder to justify returning to this setting in subsequent sequels.
The weapons and plasmids are very similar to the original, the graphics don't seem to have made a leap since the first game, and the ending sequences go on for longer than they need to. All of that being said, Rapture is more than able to support this sequel. But will there be room for a third game? That's a much tougher question, and nothing here seems to set up any other games. Don't expect much in the way of new ideas or mechanics to the Bioshock formula, but we're not about to complain about more of a good thing.