Use one of every pickup (both power-ups and equipment).
Trap over 50 ghosts in your Xbox LIVE Ghostbusting career.
Complete the game with less than $100,000 in property damage.
Complete the game on 'Professional' difficulty.
Revive your teammates 20 times.
Complete the game with more than $3,000,000 in property damage.
Trap a ghost using the Stasis Stream.
Trap a ghost using the Slime Tether.
Use the Slime Tether on 15 ghosts.
Successfully complete one Xbox LIVE campaign.
Continue playing to unlock this secret achievement.
Complete the game on 'Casual' or 'Experienced' difficulty.
Obtain 100% PKE scans for every paranormal creature.
Collect all Cursed Artifacts.
Recover 20 of your own full ghost traps.
Airborne coffins are an affront to gravity; use your Proton Pack to avenge Mother Nature!
The hedge maze is a real eyesore; do some Protonic pruning.
Purchase all available equipment upgrades.
Purchase all upgrades for the Dark Matter Generator.
Some ghosts had a real blowout in the Coat Room. Clean it up?
Quench your thirst wherever possible to avoid being scared spitless.
Purchase all upgrades for the Meson Collider.
Keep your ears open to learn everything you can about the Civil War.
Purchase all upgrades for the Slime Gun.
Purchase all upgrades for the Proton Gun.
The children's reading room has a story to tell, but it will take more than your eyes to see it.
Slam dunk a ghost into a trap.
The tidy arcitectural office could use some Proton-based humbling.
Knock yourself down with your own weapon.
Remedy a dubious food choice to make the bar mitzvah as orthodox as it can be.
Get slimed by a charging ghost.
Eliminate a creature.
Collect a Cursed Artifact.
Obtain a 100% PKE scan on a paranormal creature.
Trap a ghost.
Slide down the fire pole.
More than $100,000 earned in Xbox LIVE.
Be the overall top earner in each Xbox LIVE campaign setting.
Defeat three Most Wanted Ghosts.
Be top earner in each Xbox LIVE job type.
Defeat all Most Wanted Ghosts.
Successfully complete each Xbox LIVE job in every location.
Get over $2,500,000 in Xbox LIVE, over 30 post-job awards, 50 jobs completed.