I think it was a mediocre game, but for $10 bucks... why not?
The biggest problem of Bioshock 2 is that it never justified its existence. It has no raison d?être. In an interview with Jordan Thomas, the man stated he wanted to use the sequel to provide contrast to the schools of thought presented in the first game by presenting ?a new way of thinking and hopefully take it to a similar extreme?. By playing the game, I could see that he tried, but his vision never came close to being fulfilled. In the end, Bioshock 2 improves its shooting mechanics and little else. It learned nothing from the original game?s mistakes, its narrative themes are never fully realized (or even consistent with the ones from the previous game for that matter) and the missions demanded from the gamer are never satisfactorily justified, thus breaking the immersion.
The combat mechanisms ARE better, yes. But I don't care about that.
The combat mechanics don?t really matter as Bioshock?s core has never been about shooting plasmid at Splicers anyways. Bioshock is about the living and breathing environment of Rapture, its art and philosophies, its way of life and the conflict of forces being waived inside its dieselpunk/biopunk interiors.