Here is the complete list of unlockable trohpies in Aliens: Colonial Marines on the PS3.
There is just one secret trophy to unlock, listed at the bottom.
Now go get your Sigourney Weaver on!
Aliens: Colonial Marines Trophies
Adaptive Morphology (Silver) – Upgrade every Appearance slot once for a Xenomorph class
Adios, Muchachos (Bronze) – Gib two enemies at once
Another Bug Hunt (Bronze) – Complete a Challenge
Another Glorious Day in the Corps (Bronze) – Complete Distress
Anytime, Anywhere (Bronze) – Kill a Crusher without it damaging you
Arbitrarily Exterminated (Silver) – Kill 2179 Xenomorphs
Bad Feeling About This Drop (Bronze) – Complete Sulaco Falls
… But No Cigar (Bronze) – Rescue a teammate from a Close Encounter
Coming Outta the Walls! (Bronze) – Kill a Xenomorph climbing on the walls or ceiling
Distinguished Service Medal (Silver) – Complete all Challenges
Don’t Count Me Out (Bronze) – Revive a teammate
Dragged Queen (Bronze) – Complete Home
Eat This! (Bronze) – Kill a Xenomorph with a shotgun at very close range
Entry Prohibited (Bronze) – Kill 10 Xenomorphs that are using vents
Field Modified, Kill Certified (Bronze) – Upgrade every slot for a weapon
Field Promotion (Bronze) – Earn Rank 2 as a Marine
Fire Drill (Bronze) – Arm the emergency release and escape in under 2:30 on Sulaco Falls
Game Over, Man! (Silver) – Complete all Campaign levels on any difficulty
Heavy Lifting (Bronze) – Defeat the Raven in under 1:10 on Soldier difficulty or higher
I Can Handle Myself (Silver) – Purchase all Upgrades for a weapon
I Feel Safer Already (Bronze) – Have another player join your party
I Heard THAT (Bronze) – Collect all 12 Audio Logs
I Like to Keep These Handy (Silver) – Collect all 6 Legendary Weapons
I Love the Corps! (Gold) – Earn Rank 60 as a Marine
It’s a Dry Heat (Bronze) – Kill 3 enemies with a single U4 Firebomb
Just a Grunt (Bronze) – Complete Hope in Hadley’s
Lean and Mean (Bronze) – Earn Rank 20 as a Marine
Let’s Rock! (Bronze) – Kill 10 Xenomorphs in a game with the M56A2 Smart Gun
Love at First Sight (Bronze) – Survive a Close Encounter with a Facehugger
Majority Shareholder (Bronze) – Spend 30 Commendations
Micro Changes in Air Density (Bronze) – Track 100 hostile targets with the Motion Tracker
Mostly Come at Night… (Bronze) – Find Newt’s doll
Need a Deck of Cards? (Bronze) – Set up a UA 571-C Remote Sentry
No Need For Alarm (Bronze) – Complete One Bullet without setting off the alarm
No Offense (Silver) – Melee a Lurker that is pouncing toward you
Not Bad For a Human (Silver) – Complete all Campaign levels on Hardened difficulty
Oorah to Ashes (Bronze) – Collect a Dog Tag
Perfect Killing Machine (Bronze) – Upgrade every Loadout slot for a Xenomorph class
Personal Friend of Mine (Bronze) – Collect a Legendary Weapon
Platinum (Platinum) – Earn all trophies
Quoth the Raven (Bronze) – Complete The Raven
Ready to Fry Half a City (Bronze) – Edit a Marine Loadout
Remember the Fallen (Silver) – Collect all 35 Dog Tags
Secreted from What? (Bronze) – Kill 5 Spitters without being damaged by acid
Short, Controlled Bursts (Bronze) – Defeat all Xenomorphs in the Sulaco hangar bay without them crossing your barricade
State of the Badass Art (Gold) – Complete all Campaign levels on Ultimate Badass difficulty
Stay Frosty (Bronze) – Complete an entire Challenge category
Still Got a Job to Do (Bronze) – Complete Rampart
Structural Perfection (Bronze) – Edit a Xenomorph Loadout
You Look Just Like I Feel (Silver) – Upgrade every Appearance slot once for your Marine
Here is the only secret achievement to unlock in the game.
Easter Egg (Bronze) – Find the Easter Egg (Check out my other article for help getting the Easter Egg trophy)
Now the question is.. why the hell isn’t there a “RIPLEY!!!!” trophy? Slackers..