To get a health kit, melee a health station.
To easily gain money, go to an area with a working slot machine. For example, in the Siren Alley level inside the Mermaids Lounge, go upstairs into the room on the right side of the balcony that contains the slot machines. As you enter the room, turn left, and play the right-hand machine of the two that are facing you. Save the game before you start, and resave it every time your total money increases above where you started. If the machine does not payout after about a dozen turns, reload your saved game. It is possible to max out your wallet in around ten minutes. Repeat as desired.
Easy Security research:
Find a hackable vending or health machine near a Bot Shutdown Panel. Hack the machine, and stop the pointer on the red to activate the alarm, thus triggering the Security Bots to come after you. Once you see them, quickly take a picture of one of them with the camera, then use the Bot Shutdown Panel to shut them down. The disabled bot will still be highlighted by the research camera, allowing you to research Security easily.
Easy XP in Multiplayer mode:
To easily gain XP in Multiplayer mode, have a friend join your game while it is in progress on any team-based game, putting him or her on the other team. Find a turret anywhere in the map, and make sure there is nobody around. You and your friend can hack the turret back and forth for 10 XP per hack. Repeat as desired.
Unlock the following alternate endings by performing the corresponding tasks:
Good ending #1
Save all Little Sisters you adopt, and spare Grace Holloway, Stanley Poole, or Gilbert Alexander.
Good ending #2
Save all Little Sisters you adopt, and kill Grace Holloway, Stanley Poole, and Gilbert Alexander.
Standard ending #1
Save at least one Little Sister, and harvest at least one Little Sister. Choose to die at the end, and spare Grace Holloway, Stanley Poole, and Gilbert Alexander.
Standard ending #2
Save at least one Little Sister, and harvest at least one Little Sister. Choose to die at the end, and kill Grace Holloway, Stanley Poole, or Gilbert Alexander.
Bad ending #1
Save at least one Little Sister, and harvest at least one Little Sister. Choose to live at the end, and spare Grace Holloway, Stanley Poole, and Gilbert Alexander. Alternately, harvest all Little Sisters you adopt, and spare Grace Holloway, Stanley Poole, and Gilbert Alexander.
Bad ending #2
Save at least one Little Sister, and harvest at least one Little Sister. Choose to live at the end, and kill Grace Holloway, Stanley Poole, or Gilbert Alexander. Alternately, harvest all Little Sisters you adopt, and kill Grace Holloway, Stanley Poole, or Gilbert Alexander.
To pull normal items toward you with Telekinesis and without using any Eve, do the following. 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.
When bringing an item to you that you do not want to throw, and therefore keep from having to use your EVE, press Square to drop the object or press X to take the item if it can go into your inventory.
To easily defeat Rumblers, use Telekinesis to grab the rockets it fires and throw them back at it.
Hacking for Loot:
When hacking a vending machine, stop the needle in the blue section for free ammo or a free eve. Hack a health station using the same strategy to receive a first-aid kit.
When security bots appear after an alarm is triggered, hack them and they will stick around and fight on your side. To easily hack them, stun them with an electric attack first.
Power To The People weapon upgrade station locations:
Power To The People weapon upgrade stations can be found at the following locations:
POWER TO THE PEOPLE STATION - LOCATION
1. Ryan Amusements - Going to get the ticket.
2. Ryan Amusements - After the family display, through the door.
3. Pauper's Drop - From Journal 039, go out the door, down the stairs.
4. Pauper's Drop - In the back of skid row, in the limbo room. It is behind the stage
5. Pauper's Drop - After breaking into the hotel, when you are going through the halls, you will go through a hole. To the left is a blue sheet. To the right is the station.
6. Siren Alley - In Mermaid Lounge, go upstairs, and hack the gate. Then, drop through a hole in the floor.
7. Siren Alley - Just before Pump Station 5.
8. Dionysus Park - Behind the door; combination is 1080.
9. Dionysus Park - On the path to the train.
10. Fontaine Futuristics - After you destroy the flying Gil bot, you can enter where you gain access to the laboratory.
11. Fontaine Futuristics - After you turn on the lights, it will be in the bottom of the holding cells area.
12. Persephone Outer - On your left.
13. Inner Persephone - After you gain access to Sinclair, look back in the room.
14. Inner Persephone - Just after Ward B in the room with the rocket turret.
Big Sisters strategy:
Before fighting the second Big Sister (if you are harvesting ADAM but saving the girls), you will get an Enrage Plasmid. There are two bodies to scrounge ADAM from. One is more easily securable, which has a security camera, a rocket launcher bot, and a large puddle of water in this area. The Big Daddy comes back several times. If you drop off the little girl in her hole near here, you can wait for the Big Sister to show up. Then, enrage the Big Daddy so that he takes on and kills the Big Sister. Your only concern will be Splicers and the Big Daddy after he is done with the Big Sister.
Open the following doors by entering the corresponding codes:
DOOR - CODE
Adonis Luxury Resort: Door near rubble with code written backwards on glass - "1540"
Pauper's Drop: The Clinic - "0047"
Siren Alley: Maintenance Area - "1919"
Dionysus Park: Power of the People Machine door - "080"
Fontaine Futuristics: Plasmid Theater - "5254"
Inner Persephone: Watch Tower - "2673"
Inner Persephone: Recreational Therapy - "4146"
Multiplayer rank bonuses:
Reach the following ranks in multi-player mode to unlock the corresponding bonuses:
Plasmid: Electro Bol/Winter Blast/Incinerate
Mask: Rabbit/Goat/Pink Feather
Melee: Wrench/Candle Stick/Pipe
Weapon: Machine Gun
Tonic: Expert Researcher/Security Evasion
Plasmid: Air Dash
Upgrade: Pistol Automatic Firing
Weapon: Grenade Launcher
Tonic: Speedy Recovery/Eve Saver
Plasmid: Geyser Trap
Upgrade: Shotgun Rate of Fire
Mask: Eagle/Tragic Comedy
Melee: Machete/Rolling Pin
Tonic: Back Stabber
Upgrade: Machine Gun Magazine Size
Weapon: Nail Gun
Tonic: Metabolic Eve
Upgrade: Grenade Launcher Homing Grenades
Weapon: Elephant Gun
Plasmid: Insect Swarm
Mask: Moon/Indigo Feather
Melee: Mallet/Barbed Wire
Upgrade: Crossbow Damage Increase
Upgrade: Nail Gun Magazine Size
Upgrade: Speedy Hacker
Upgrade: Elephant Gun Sniper Scope
Upgrade: Pistol Damage Upgrade
Tonic: Leg Up
Upgrade: Shotgun Automatic Reload
Tonic: Fast Feet
Mask: Peacock Feather/Sun God
Upgrade: Machine Gun Kickback Reduction
Tonic: Deadly Machine
Upgrade: Grenade Launcher Velocity Boost
Upgrade: Crossbow Rate of Fire
Tonic: Big Game Hunter
Upgrade: Nail Gun Damage Increase
Tonic: Death Trap
Upgrade: Elephant Gun Damage Increase
Melee: Hatchet Final battle strategy:Fully research the Houdini Splicer and have the Natural Camouflage equipped. Just before the final battle, remain idle to become invisible. No one will attack. Do not move or you will become visible again, everything will attack, and you cannot turn invisible while being hit. Eleanor will eventually say she can fight--quickly summon her. She will distract and fight everyone, allowing you to turn invisible. She will eventually kill everyone so that you can escape.
"9-Irony" trophy hint:
Get your first Little Sister in Ryan Amusements. She will take you back into the main hall of Ryan Amusements to collect ADAM. While she is collecting ADAM, Splicers will attack and break down the door to the next section. Go through the door to find a desk on the left with an animatronic Andrew Ryan behind it. Near a cabinet that is behind him is a golf club. Use Telekinesis to pick up the club, then shoot it at the Andrew Ryan animatronic.
Bought a Slot - Buy a Plasmid or Tonic Slot at a Gatherer's Garden.
Max Plasmid Slots - Fully upgrad to the maximum number of Plasmid Slots.
Upgraded a Weapon - Upgrade a weapon at a Power to the People Station.
Fully Upgraded a Weapon - Install the third upgrade to a weapon.
All Weapon Upgrades - Find every Power to the People weapon upgrade in the game.
Prolific Hacker - Hacked one of each kind of machine.
Master hacker - Hacked 30 machines at a distance with the Hack Tool.
First Research - Researched a Splicer with the Research Camera.
One Research Track - Maxed out one Research Track.
Research Master - Completed all research on every subject in Rapture.
Fully Upgraded a Plasmid - Fully upgraded one Plasmid to the Level 3 version.
All Plasmids - Found or purchased all 11 basic Plasmid types.
Trap Master - Killed 30 enemies using only Traps.
Master Protector - Got through a Gather with no damage and no one getting to the Little Sister.
Big Spender - Spent 2000 dollars at Vending Machines.
Welcome to Rapture - Completed your first non-private match.
Unnatural Selection - Scored your first kill in a non-private match.
Disgusting Frankenstein - Become a Big Daddy for the first time in a non-private match.
'Mr. Bubbles - No!' - Took down your first Big Daddy in a non-private match.
Against All Odds - Finished the game on the hardest difficulty level.
Two-Bit Heroics - Complete your first trial in a non-private match.
Mother Goose - Saved your first Little Sister in a non-private match.
Parasite - Achieved Rank 10.
Little Moth - Achieved Rank 20.
Skin Job - Achieved Rank 30.
Man About Town - Played at least one non-private match on each multiplayer map.
Daddy's Home - Found your way back into the ruins of Rapture.
Protector - Defended yourself against Lamb's assault in the train station.
Sinclairís Solution - Joined forces with Sinclair in Ryan Amusements.
Confronted Grace - Confronted Lambís lieutenant in Pauperís Drop.
Defeated the Preacher - Defeated the Preacher.
Nose for News - Uncovered the secret of Dionysus Park.
Found Lamb's Hideout - Gained access to Lambís stronghold.
Heading to the Surface - Headed to the surface on the side of Sinclair's escape pod.
9-Irony - Paid your respects to the founder of Rapture.
Distance Hacker - Used the Hack Tool to hack an object at a distance.
Unbreakable - Defended yourself against the Big Sister without dying.
Look at You, Hacker - Killed 50 enemies using only hacked Security.
Adopted a Little Sister - Adopted a new Little Sister for the first time.
Counterattack - Killed an enemy with its own projectile.
Grand Daddy - Defeat 3 Big Daddies without dying during the fight.
Master Gatherer - Gather 600 ADAM with Little Sisters.
Dealt with Every Little Sister - Dealt with every Little Sister.
Big Brass Balls - Finished the game without using Vita-Chambers.
Rapture Historian - Found 100 audio diaries.
Proving Grounds - Win your first non-private match.
Savior - Save every Little Sister and spared Grace, Stanley and Gil.
Reunion - Reunited with your original Little Sister.
Choose the Impossible - Achieve Rank 40.
Escape - Escape Rapture.
Platinum Trophy - Earn all Bronze, Silver, and Gold trophies.
"Rapture Metro Map Pack" trophies:
Aqua Incognita - Play at least one non-private match on each DLC map.
Territorial - Win a non-private match in each of the 6 new maps.
Reincarnation - Use rebirth to start again.
"Protector Trials" Trophies:
Litmus Test - Earn 6 stars in the Protector Trials.
Acid Test - Earn 18 stars in the Protector Trials.
Trial By Fire - Earn 36 stars in the Protector Trials.
Enemy of the Family - Earn an A rank in all Protector Trials.
Perfect Protector - Collect 100% of the ADAM in a single Protector Trial.
Get a Bigger Bucket - Collect 50% of the ADAM available in all Protector Trials.
Guardian Angel - Completed all bonus Protector Trials.
"Minerva's Den" trophies:
ADAM Addict - Resolve all the Little Sisters in Minerva's Den.
Garbage Collection - Destroy all 10 Vacuum Bots in Minerva's Den.
High Score - Get 9999 Points in one game of Spitfire.
Lancer Killer - Kill a Lancer Big Daddy.
SUDO - Wrest control of The Thinker from Reed Wahl.
Login - Reach Rapture Central Computing Operations.
Logout - Escape Minerva's Den.
Root Access Granted - Reach Computer Core Access.