hi, im unregisterd here but last night when i was playing the game for a third time on xbox 360 (killed sander cohen twice before checking he is best to let live cause he opens a room in one of the next parts :s) i was able to save 4 Little Sisters in Fort Frolic when there are only 3 in this part.

this is what i did:

after going to fleet hall and making the picture of the dead pianist, i had to kill the guy in the freezer (rodriguez is it ?) but after i did that i just fully explored the next part before returning the picture and i killed 3 big daddys and saved the sisters and the other 2 guys so i didnt haven to go back,

so basicly i had all the pictures and the sisters done, but when i was going to return them, there was a fourth big daddy/ little sister standing at the debree next to the masterpiece: it seems they are always there after you kill the guy in the freezer, so i got a fourth saved sister and 2 gifts in the same part
on top of my screen it says collected 4/3 gatherers or something
this time i let sander live but when i went in to the bathysphere it said "you have not harvested or saved al the little sisters in this part" but i just clicked away and took the bathysphere .

i dont know how this will affect the rest of the game (i didnt have the saved all sisters achievement) ill post when i finish the game again with this (dunno what you call this exploit ?)

sry for the long post , not used to this

I'd call this a glitch cos in my vague memory, three is the most number of little sister in any given area at once.

But interesting nontheless, will have to give this a try. One question, did you harvest or rescue the sisters? not sure how significant or important that is but whatever...

cool. id be curious to know if you can do this multiple times. if so, you will get so much ADAM it'll be nuts...

wel this time i saved the little sisters i harvested the first time ever played but you get better stuff when you save them imo

finished it now didnt have any bugs cause i got 4 there and still got the achievement for little sister savior

so basicly its a win win situation :-)

I just tryed it today it works:) i wonder if there are any other parts like this in the game?

Well, ain't that odd! I did EXACTLY the same thing, after I killed that guy in the freezer instead of going back to the masterpiece I proceeded and right in the next room (with stairway in the middle) just take down the first Bouncer and then another 2 (with little sisters) will come out in no time... AFTER that, I went back to the main hall and right there next to the masterpiece I found another Bouncer (again, protecting another Little sister) struggling with some splicers... and since I just got a reward for saving my third little sister, after I saved this last one I got another teddy bear with 200 more ADAM and stuff! Great find there!!!

I found an odd glitch in that level as well. If you have a Big Daddy hypnotised when you go into the second guy you have to kill/photo (can't remember his name) when you go down into the trap the Daddy doesn't follow you. So when he comes out the Daddy starts attacking him. This messed my game up because the guy and the Daddy started fighting and went outside the room to do it, so the boss guy didn't throw the bombs into the vent to open the escape grate. I got stuck basically, and since I hadn't done it before I didn't know what to do. So I used Telekinesis to stack some furniture to climb back up the balcony and tried to fight the boss guy. Since he hadn't completed his story part he was unkillable >_< Had to restart the whole level to finish.

http://bioshock.wikia.com/wiki/Extra_Little_Sister_Bug // It's called Extra Little Sister Bug, and it can also be done in the Neptune's Bounty map (just did it myself today)