BioShock [SPOILERS INSIDE: ENTER AT OWN RISK]

[Fabricated]

I haven't beaten the game yet but I'm at the "make a big daddy suit" area.

Notes:
1. Suchong's death tape is great after basically learning what a cold hearted prick he was over the whole course of the game. I kinda wanted to talk to the guy or maybe even kill him, but it was pretty satisfying.

2. Atlas/Fontaine confuses me since his motivations make no sense in some areas. Why steal an egg to grow a copy of Ryan and send him away and have him come back via a method that would kill just about anyone? Why pull the mask off the instant Ryan dies? I'd have been way more stunned had Atlas lead you on a bit further after that (like to meet him so you could "escape").

3. Why didn't Tenebaum drop a dime on Atlas the instant she noticed you were working for him without knowing it?

4. What the hell was that audio log in the apartment where some character I don't recall talks about finding a half-knitted blanket? I must have missed something because I didn't understand who or what it was about.

5. "Would you kindly" is such a general phrase. What a terrible command phrase.

That reminds me. I heard something hilarious happens when you piss off Cohen by killing his dancers. I never did it because I was on a 6 hour playing binge and it was 5 in the morning.

[Rishathra]

4. That was Security Chief Sullivan.  He was Ryan's main muscle in Rapture.  He had no problems torturing bad guys, but as time goes on Ryan has him going after people that he feels really don't deserve it.  Eventually, he's ordered to put the bump on Anna Culpepper, a rival musician to Sander Cohen who basically likes to badmouth him and Ryan's policies.  He's pretty conflicted about having to do it and the tape you listened to is him expressing his guilt after the act.  There is a tape in the casino in Poseidon Plaza that might fill in more of the picture for you.

[Miasma]

From a Gamespot interview with Ken Levine, creative developer behind BioShock:

GS: Considering that the plot inhabits the gray areas of morality and you've included general condemnation of taking things to extremes, why give the player two endings that are on ridiculously opposite ends of the spectrum?

Gray areas of morality?  Your only choice in the game is wether or not to rip apart little girls and feast on their innards to accumulate more God like powers, how the fuck is that a "gray area"?  It's black and white and hence the endings.

[UnSub]

2) Fontaine uses Ryan's genetic material (i.e. you) to get past a lot of security systems that would have apparently activated if you weren't Ryan. He drops the mask once you shut down the self-destruct mechanism because he desparately needs to tell someone how clever he is and how he's won.

3) There's not much evidence that Tenenbaum works out who you are prior to you killing Ryan.

Nothing hilarious happens if you kill Cohen's dancers. If you let him live at Fort Frolic, then visit his apartment in Olympus Heights, he's got some splicers dancing for him. Kill them and he comes down to fight you. Once you kill him, you can take a picture of his body for the "Irony" achievement on the Xbox360, then explore his apartment.

[Kitsune]

I couldn't bring myself to kill the dancers.  They weren't hurting anybody, they were just minding their own business, so I left them alone.  Of course, I shot Cohen in the face the instant he appeared on the stairs in Fort Frolic before it occurred to me to think, "Oh wait, maybe he wasn't about to attack me.", so he wasn't alive to be in his apartment when I got there.

[Samwise]

I think when I found the dancing splicers I accidentally pissed them off by knocking over the phonograph or something.  Cohen didn't do anything hilarious because, like Kitsune, I put a crossbow bolt in his eyehole the first chance I got.  It didn't seem prudent to leave him to his own devices any longer.  Creepy little fuck.

[Velorath]

I don't recall him doing anything hilarious beyond him getting pissed off enough to try to kill you.  If he's still alive at that point though, it does give you access to his room, which you wouldn't be able to get into otherwise.

[LK]

Access to his room being important and intended though as there is a Power to the People station up there.

[Kitsune]

After finishing the photograph collection I was pretty much just milling around at the foot of the stairs, unsure about what was gonna happen.  When Cohen appeared, I whipped out the crossbow, snapped it up, and had a bolt in the air towards his face in an eyeblink; it was the fastest headshot I'd ever made.  He didn't even finish his first sentence.  His creepy behavior had wound me up so much that a non-violent solution never even began to occur to me.

On my second playthrough in hard mode, I let him live.  I was hopeful that I wouldn't have to kill him to get into his apartment, but c'est la vie.