Hmm… I thought the bad ending was more satisfying than the good ending. Yes, the good ending was warm and fuzzy, but the bad ending had nukes and really got me thinking about a potential sequel. Or maybe I’m just weird.
Perhapse, after taking control of Rapture, the protag (Jack) was able to get the city running efficiently and turned it into a fortress nation. Maybe he’s like an underwater Franklin Roosevelt.
I hope the premise of the first game has a Little Sister returning to Rapture out of vengence. Heh. Maybe they’ll call her Big Sister. I like the idea that the objective of the second game is to kill the protagonist of the first game.