Find and open "defuser.ini" in your BioShock installation folder. Find the key you want to bind the code to and set the bind (for example, "F10=god"). Save the file and start the game, while in game press the bound key to toggle. Note: The cheat can be deactivated if a video cutscene appears or if you move to a new area.

Create a text file named Plasmid.txt with a text editor and place it in the "System" folder in the game directory, which is typically "C:\Program Files\2K Games\BioShock\Content\System". In the "User.ini" file used in the "Cheat mode" section, bind the following command to any key

exec Plasmid.txt

Edit the Plasmid.txt file you have just made with any of the following commands listed below. Once you are in the game, use the key you have bound to the "exec Plasmid.txt" line. Go to a gene bank to check out any new Tonics you have summoned. Higher level Plasmids seem to replace lower level ones automatically. All of the below entries are Tonics unless otherwise indicated.

Create a text file named Weapons.txt with a text editor and place it in the "System" folder in the game directory, which is typically "C:\Program Files\2K Games\BioShock\Content\System". In the "User.ini" file used in the "Cheat mode" section, bind the following command to any key

exec Weapons.txt

Edit the Weapons.txt file you have just made with any of the following commands listed below. Once you are in the game, use the key you have bound to the "exec Weapons.txt" line. Alternately, you can use Plasmid.txt file if already created and use the same key for both types of cheats. Spawned weapons and ammunition will appear directly in your inventory. Note: The game has default maximum ammunition carrying capacities for each weapon (for example, you can normally carry a maximum of 48 standard pistol rounds) Thus if you try to summon 999 pistol rounds with the pistol in your inventory, the game will automatically limit you to 48 rounds. However if you summon 999 rounds before you first acquire the pistol, then you will have 999 rounds available in your inventory.

Create a backup copy of the file before proceeding. Use a text editor to create the file "upgrades.txt" in the "\Content\System" directory in the game folder. Add any of the following codes as separate lines in that file. Then use a text editor to edit the "User.ini" file in the "\Documents and Settings\<username>\Application Data\Bioshock" directory in Windows XP or the "\Users\<username>\AppData\Roaming\BioShock" directory in Windows Vista. Note: You may first need to enable hidden files and folders to be viewed first. find it. Scroll down to the "[Default]" header. Choose a currently unbound key bind by inserting the line "Exec upgrades.txt"; for example "F7=Exec upgrades.txt". Note: If you upgrade a weapon you do not have yet, they will be enabled when you pick up that weapon.

There are three possible endings, depending on how the Little Sisters were treated.

If more than one Little Sister was harvested, the "bad" ending will play.

If no more than one Little Sister was harvested, but the rest were rescued, the "good" ending will play.

Rescue all the Little Sisters in the game except for one that is harvested to see the third ending.

After becoming a Big Daddy, make a new saved game. At this point you are near the end of the game. If you missed something you can go to the bathysphere and explore Rapture again, but also you are a Big Daddy now so the splicers will not harm you, security cameras will not set off alarms, etc.

If you are up against a stationary security robot (RPG, etc.), use Telekenesis to grab a crate or pallet. Hold it in front of you until you can find a place to hide and plan what to do next. The item you hold up will block some attacks.

When fighting a Rosie, use armor piercing rounds from the machine gun or pistol. For a more effective way of killing, launch frag grenades and run out a door. The Rosie will follow you, fire proximity mines at the door, and when it walks through it will be damaged or destroyed.

After hacking a robot, it will begin firing at your enemies. If the robot gets hit it will begin to lose health, catch on fire, and eventually blow up. To stop this from happening, deactivate the robot, then reactivate it a few seconds later. This should make the robot have full health again.

Save the game before you start playing. Just keep reloading the game until you hit it.

1: In Peach Wilkins' hideout (Neptune's Bounty), bottom floor. As soon as you come downstairs it is directly in front of you.

2: On the way to Farmer's Market in Arcadia, the station is located to the left after you go up the first stairs coming from Tree Farm.

3: The Winery's basement in Farmer's Market. There is a flooded area with one of them attached to the wall. It is in front of you when you come down the stairs; just keep going forward.

4: In Fort Frolic, from the Atrium bottom floor, go towards the bathrooms. Then, move right and follow the path until you see some small stairs to your right leading up to a door. Go inside then go down into the basement. The basement is filled with cigars and the like. The upgrade station is on the wall.

5: Go to Poseidon Plaza in Fort Frolic. Go to the other end of the bottom floor (the opposite end of where you enter). Go into Sinclair Spirits (the room that has a corpse on a sort of "altar"). In the basement of this store is the station.

6: In Hephaestus Core Room, go down to the bottom floor and run around (literary). Eventually you will see it attached to the wall.

7: In Hephaestus, Kyburz's office. It is attached to the left wall (back turned to the entrance) in the rear of the room.

8: At the bottom floor of the Mercury Suites area, on the back of the center pillar.

9: In Sander Cohen's secret room, in the Olympus Heights' Mercury Suites area.

10: Go to Atlas' Headquarters in Apollo Square (Fontaine's Home For The Poor area). It is located on the fourth floor. Go down the stairs in the room and look to the right. The station will be in front of you.

11: When you enter Point Prometheus and chase Fontaine, eventually you will end up in a little square and Fontaine will go behind a locked Museum door. At the opposite end of this square (from where you came) is a dead Big Daddy. Next to it is the upgrade.

12: In the Voice changing labs in Point Prometheus, one of the labs has it.

The code to get to Fontaine's penthouse is from the diary: "5744".

Get to the point when you reach the medical pavilion and must unlock the doors. When you pull the first switch and go to the second, pull it and Atlas will say "Now you have stirred the Wookie cage".

In the Arcadia level, you will find a place that appears to be a bar. Search around a bit and you will see a block of cheese, followed by holes. The cheese is cut like Pac-Man himself. There are holes next to it, none of which can be gun shots. If you shoot the floor with any weapon you have, the marks will not match.