BioShock 2 Cheats :
Secret - Defeating Rumblers
Secret - Free Telekinesis
Use the following trick to pull normal items toward you with Telekinesis and not use any Eve. Eve is only used when you release the button to throw an item with Telekinesis. Use Telekinesis to pull items such as ammunition or first aid kits toward you to collect without wasting any of your Eve. If you take an item you are already maxed out of, you will either be stuck holding it with Telekinesis or have to release the button to throw it and use some Eve. However, if you display the Plasmid wheel and select another Plasmid attack, you can release the button to drop the item without Telekinesis automatically throwing it. Thus, you will not use any Eve by dropping an item you cannot carry. This can also be used when pulling electrified trip wires out of walls. To do this, pull the item toward you with Telekinesis, and without releasing the trigger, display the Plasmid wheel to select another plasmid. When you close the Plasmid wheel and release the trigger, you will drop the item.
Easter Egg - "The life you thought you had?"
There is many easter eggs in this game and the best are the bioschock 1 easter eggs (I liked #2 the best) but anyway right before you go into Mr. Whales's "Church" your in a boiler room and if you pay close enough attention you'll notice that there are two big paintings of the main character in the first game is injecting himself with a plasmid refill if you played the fist one you would understand if you didn't your just going to be lost this is a very obvious easter egg but it is still cool all in all.
Unlockable - Trophies List
Code - Plasmid list
Electro Bolt – fire lighting strikes (shooting water makes it become electrified)
Telekinesis – use object or enemy bodies as projectiles
Incinerate – ignites a single enemy.
Security Command – when fired up at bots or turrets causes them to attack any target.
Scout – become invisible and move around without being noticed. You can also fire plasmids in this state, but in order to progress, you’ll have to return to your physical body.
Level 2: You can also hack security and vending machines
Winter Blast – freeze enemies for a period of time
Hypnotize – you can cause a splicer to attack anything nearby
Cyclone Trap – enemies that step on a trap are thrown in the air and get major damage when they fall.
Insect Swarm – send a swarm of bugs to attack an enemy
Decoy – create a clone of yourself to distract enemies
Credit the unigamesity