Secret message key:
In Chapter 1, just after you repair the claw for the tram hit your objective finder. Follow the blue line into the hall way where you need to go. Stop as soon as you enter the hallway and look up at the catwalk above your head. Ignore the alien for now. Walk until you find the first corridor on the right. Walk into it there to see writing in an alien language all over. Look down there to see a message that says in English that reads “Don’t listen to their lies, read what they’re really saying.” Keep reading to find a key that shows the alien language, and below that the corresponding are English letters from A to Z and 1 through 0. Although not everything will be legible, you should be able to decipher enough to understand what is written.
In Chapter 6, after fighting the final creature that spills the gas out, there is a dim flashing sign just before the anti-gravity area. This is a codex for some of the letters and all of the numbers in the alien language.
Finding the Peng treasure:
To get Peng you must be on the flight deck on Chapter 11. When in the flight room where your ship “used” to be, look between the walkways. It is in the gap between Runway 1 and 2 by the shuttle in the Flight Hangar. You should see a very small statue that has a golden appearance. Pick it up with kinesis and you will receive the Peng treasure (and its achievement or trophy). It can also be sold for 30,000 credits. Finding the Peng treasure
How to defeat the Hunter:
The Hunter is a regenerating Necromorph that cannot be killed. The first time you encounter him is difficult, and you just have to run. It is best to shoot off his legs because he does not regenerate them immediately. He is much slower without legs. Then, freeze him and he will be taken away. When facing him again in a later act, use the same strategy then fry him with the rocket engines. Collect the Power Node that it drops.
How to defeat the Leviathan:
First, take out the tentacles. When the center opens, aim for the orange ball. Take the explosive canisters or the Lathan pod and launch them in the center.
How to defeat the final Boss:
Do not be intimidated by its size. Though massive, it is very easy to kill. The following was done under the Medium difficulty setting. Upon starting the fight, notice you are “caged in” by the Boss’ tentacles. Notice the yellow “blooms” around the Boss’ mouth. Shooting each one will get you closer to killing it. However, upon shooting a few of them, the boss Grabs you, holding you in the air. During this time, it appears that you are helpless. Aim whatever weapon you are using at the time and shoot the yellow blooms. After a few shots you will be dropped. The Boss will then begin slamming its tentacles at you more frequently. They are very easy to avoid. Strafe left to right constantly. They will never hit you. The Boss will roar, shoot a few exploding cells at you, or will drop enemy pods upon you. This is part is also easy, considering it is usually only two small Necromorphs. After you destroy the blooms, you will notice a “caged” area underneath the beast. Under this rib cage lies its many hearts. Again, use same strategy with the whole tentacle scenario. After a few times, the Boss will have his fit and open up again. Unload and the Boss will come tumbling down.
Slowing the regenerating hunter:
To slow down the regenerating hunter for the longest time possible, cut off all the limbs of the hunter with the plasma cutter. Thenm shoot the hunter with the stasis field (if it is charged). This will allow you to get around and away from it while focusing on whatever else is attacking you.
Easy ammo:
When you are out of ammunition, but have a bench and several Power Nodes, you can refill the ammunition in a weapon to its new maximum by upgrading to a capacity node in that weapon. Note: This will also restore your health and help save medpacks.
Easy credits:
Purchase the Contact Gun as soon as possible. Ammunition for it will start appearing around the ship. Sell all of the unneeded ammunition for it for 1,000 credits per unit.
Sell your Plasma Cutter at the store. It is worth quite a lot, but a new one is completely free. This is helpful for the max up challenge, because you can now buy about another seven nodes.
In Chapter 2 when you enter the Zero G Therapy area, there is a hole on the right side of the room along with debris blocking the hallway to other side and where you can see the planet. Once you go through the room on the left and get to the other side, back up to the debris. You can see something flashing outside in the direction of the planet. It is 10,000 credits.
Prevent Necromorphs:
When there are a lot of dead human bodies around, stamp on them to decapitate some limbs. This prevents them being turned into Necromorphs if one of the sting ray-like Necromorphs that brings them to life appears.
Trophies:
Bronze trophies
A Cut Above – Kill 30 enemies with the ripper
Air Alert – Zero-G jump over 100 times
All Systems Go – Complete chapter 3 on any difficulty setting
Armstrong – Shoot 50 objects using kinesis
Autofire – Kill 30 enemies with the pulse rifle
Betrayed – Complete chapter 11 on any difficulty setting
Big Spender – Spend 200,000 credits at the store
Brawler – Kill at least 30 enemies with a melee attack
Brute Force – Kill a brute
Cannon Fodder – Complete chapter 4 on any difficulty setting
Crackshot – Achieve a perfect score in the shooting gallery
Dead on Arrival – Complete chapter 1 on any difficulty setting
Don’t get cocky, kid – Survive the ADS canon with over 50% shield strength remaining
Eviscerator – Kill 30 enemies with the line gun
Exodus – Complete chapter 12 on any difficulty setting
Exterminator – Kill the leviathan
Freeze – Use stasis on 50 enemies
Full Contact – Kill 30 enemies with the contact beam
Get off my ship! – Kill the slug boss
Greenhouse Effect – Complete chapter 6 on any difficulty setting
Keeper of the Faith – Complete chapter 10 on any difficulty setting
Kickin it – Escape from a lurker’s grab attack 10 times
Lab Rat – Complete chapter 2 on any difficulty setting
Live With The Hot Ones – Kill 30 enemies with the flamethrower
Marksman – Dismember 20 limbs
Merchant – Collect 8 schematics
Mindless Prey – Kill the hive mind
Pack Rat – Store 25 items in safe
Playing Catch – Catch a brute or leviathan pod using kinesis
Pusher – Kill 30 enemies with the force gun
Ragdoll Check – Force an enemy into a gravity panel 5 times
S.O.S. – Complete chapter 7 on any difficulty setting
Slugger – Kill the slug boss with more than 50% shield strength remaining
Story Teller – Collect 75 logs
Strange Transmissions – Complete chapter 8 on any difficulty setting
Surgeon – Dismember 500 limbs
There’s Always Peng – Find the peng treasure
Tool Time – Kill 30 enemies with the plasma cutter
True Believer – Complete chapter 5 on any difficulty setting
Wreckage – Complete chapter 9 on any difficulty setting
Z-Baller – Complete level 6 in zero-g basketball
Silver trophies
Butcher – Dismember 1000 limbs
Full Arsenal – Own every weapon in the game
Legend Teller – Collect 150 logs
Survivor – Complete the game on any difficulty setting
Gold trophies
Epic Tier 3 Engineer – Complete the game on the hardest difficulty setting
Maxed Out – Upgrade all weapons and equipment
One Gun – Beat the game using only the plasma cutter
Platinum trophy
Concodrance Officer – Earn all Bronze, Silver, and Gold trophies.