Follows on the story of the first bioshock but misses things that the first bioshock had
Storyline: It takes place 10 years after the first BioShock and you play as a big daddy in the same underwater city of rapture, it is really nice playing as a big daddy and im sure alot of ppl wanted this. but one of the best things about bioshock 1 was the creepy nature of the big daddy's and the litter sisters, now since you play as a big daddy and you enounter alot more of them then in the first game the big daddy's dont seems as good, this is also true for the little sisters. the actual story is also no where near as good as the first bioshock.
Graphics: graphically Bioshock 2 is identical to the original bioshock with no apparent upgrades to the visuals, i would say that bioshock is probably slightly below average compared to other recently released xbox360 games.
Replayability: Since you have the option of eather harvesting or saving the little sisters that means that you can play the game a second time and get a couple of things diffrently including a diffrent ending, the game however is only about 6-8 hours long which is short.