Easter Eggs
find a stair case on the left side of the ghostbuster HQ. Then go down to the basement. You’ll see a drinking fountain and if you go to the big wooden wall and look through it, You would be able to see a sign which read Ghostbuster logo in the extreme back. This logo has a ghost on it and it will flashing two of his finger.
There are a door next to signwhich has a logo that similar with the previous one. That had been used on ECTO 1 a car in the Ghosbuster 2.
Complete The certain requirements to get the thropy.

Trophy
How to unlock
Stasis Dunk! (Bronze)
Use the stasis stream smartly and trap the ghost.
We Came, We Saw… (Bronze)
Complete the game on ‘Casual’ or ‘Experienced’ difficulty.
Slam Dunk! (Bronze)
You must to Slam dunk a ghost into the trap.
Slime Dunk! (Bronze)
In order to acquire this trophy, all you gotta do is to trap or capture the ghost using Slime tether.
I Ain’t ‘Fraid of No Ghost! (Bronze)
To get this trophy unlocked for you just simply trap the ghost.
Aim for the Flat Top! (Bronze)
Eradicate a creature.
We be fast! They be slow! (Bronze)
Buy out all of the upgrades and updates for Dark Matter Generator.
Heat ‘Em Up (Bronze)
You will need to buy out all of the available upgrades for Proton Gun.
Mother Pus Bucket! (Bronze)
Slim Gun updates would need to be baught out for this.
I Don’t Want My Face Burned Off (Bronze)
Buy out all upgrades and updates for Meson Collider.
The Destructor (Bronze)
Completed the game, make sure to pull property destruction and damages in excess of $3000000.
I am a Ghostbuster, not a Doctor! (Bronze)
Revive your game partners about twenty times.
Nice Shootin, Tex! (Bronze)
For this achievement, you would need to finish your game, but make sure the property damage is lower than $100000.
And You Want to Keep It? (Bronze)
Gather a Cursed Artifact.
I’m Picking Up A Signal… (Bronze)
Acquire the hundred percent PKE scan on the Paranormal Creature.
I Feel So Funky (Bronze)
Charge the ghost and you will become skinny.
I Looked at the trap, Ray! (Bronze)
Revive back 20 of your own full ghost traps.
Total Protonic Reversal (Bronze)
Hit or shoot yoursel with the weapon you own.
You Gotta Try This Pole! (Bronze)
On the Fire Pole, you gotta slip down.
It’s Slime Time (Bronze)
Using Slime Tether on fifteen ghosts, shall get it unlocked.
Kosher! (Bronze)
Make mitzvah as much of an orthodox as possible by making him lost in bad food choice.
I Love You When You Rough-House! (Bronze)
The neat and aesthatical architectural office could use Proton based humbling.
You Never Studied (Bronze)
Pay extra attention to learn about Civil War as it might help you in the game later on
But the Kids Love Us! (Bronze)
There is a story in the Kids reading room, you would need to pay attention to see it, you might want to use some tools!
I have Quit Better Jobs Than This. (Bronze)
Clear up all the mess in Coat room, which was messed up by the ghosts.
Hedgebuster (Bronze)
Get rid of hedge maze, may be use some protonic!
One down, on the Ground (Bronze)
Get rid of airborne coffins using the Proton Pack.
On the Payroll (Bronze)
Completed one multiplayer campaign.
Ghostbusters Drinking Game (Bronze)
In order to avoid dehydration, drink up wherever its possible to drink.
Loans Paid Off (Bronze)
Work up to earn in excess of $100,000 in multiplayer mode.

This post contain Ghosbuster cheats, hints for PlayStation 3. Feel fee to drop a comment if you have another cheats