Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock	Points
"A" is for Apparition	Get an A ranking on a single level	40
A Shocking Development	Complete both Wavering Hills Asylum levels	50
All Your Ecto are Belong to Us	Earn 500,000 Ecto	40
Apparition Apprehender	Get 1 character to level 10	40
Back off, Man. I'm a Scientist	Fully upgrade all 4 characters	50
Bustin' Makes me Feel Good	Fully upgrade a single character	40
Captain Quick-Thumbs	Get the 10X bonus on the trapping mini-game	40
Ghostbuster General	Get 1 character to level 20	40
Ghosts are Real!	Complete the Aldridge Manor level	50
How Low Can You Go?	Complete Limbo level	70
I Love This Town!	Earn A rankings on all levels	60
It's a Series of Tubes	Complete both 13th St. Station levels	50
Life's a Witch	Complete both St. Lou's Cemetery levels	50
Listen... do you smell something?	Earn 100,000 Ecto	40
No, You Can't Self-Synergize	Get 25 Co-Op assists on a single level	40
Pier Pressure	Complete both Queen Charlotte levels	50
R-r-r-remix!	Complete a single remix level	40
Shiny New Toy	Purchase a single upgrade for any character	40
Some Kind of Glowing Hubcap?	Collect all of Rowans ghostly devices	40
Spirit Sweeper	Get 1 character to level 5	40
Who You Gonna Call?	Get all 4 characters to level 20	40
You Must Have a Big Couch!	Complete a single level with 4 players	50