20g-who you gonna call? (beat the game on normal or hard)
10g -two in the box (Trap two ghost in the same trap)
15g-All new cheap moves (Have Venkman hit on Elisa 10 times)
20g-Mr stay puft (Find 20 stay puft dolls)
10g-Mass hysteria
(Dogs and cats are living together and you’ve scared ■■ number of civilians with your crazy proton streaming)
5g-Bigger than a microchip
(Defeated a computer golum)
10g-Put a little over time in on this one
(Complete bonus stage)
30g-Not really a man of the people
(You should be poisoned, shot, hung, etc. for causing a billion dollars in damage to NYC)
10g-Nice Shootin’, Tex!
(Hit one of you’re teammates with a Proton Stream)
5g-He Slimed Me
(Get slimed [number] times by Slimer)
20g-Stay’d Puft
(Defeated the Stay Puft Marshmallow Man)
20g-Prehistoric B****
(Defeated Gozer the Gozarian)
15g-New Slimer
(Used the Slime Tether more times than the Proton Pack or Electron Gun)
5g-Ugly Little Spud
(After trapping slimer)
10g-Get her!
(after trapping the Librarian)
10g-no human could stack books like this.
(knocking down a specific amount of stacked books in the Library Lvl)
10g-Back Off Man, I’m a Scientist.
(manage up to X amount of damages that the EPA has to pay.)
20g-1,2,3 Roast HIM!
(Defeat Mr. Stay Puft)
50-gIt’s Slime Time
(Use of the Slime Tether or Slime Blower to complete mission)
10g-Don’t look into the trap!
Use the PKE Meter+paragoggles to look into the trap when it closes.
15g-Gonna’ have to hold him myself.
- Trap a Ghost with teammate(s) knocked out
10g-That’s the one that got me.
- Scan Slimer with PKE Meter
30g-What have you seen?
- Scan every enemy in the game with PKE Meter
15g-Next Time, Say yes!
(take large amounts of damage from Gozer the Gozerian)
100g-“CONGLATURATION !!!”
And the description has to be:
“YOU HAVE COMPLETED A GREAT GAME. AND PROOVED THE JUSTICE OF OUR CULTURE. NOW GO AND REST OUR HEROES !”
Thanks to ChronicCheetah on xbox.com for the achievements