Here is the full list of all 45 Paranautical Activity: Deluxe Atonement Edition achievements.
Beat 4 floors in a row using only melee attacks.
Beat hardcore mode 10 times.
Beat Hardcore Mode with all 6 characters.
Spawn two ghosts at once.
Figure out how to get to the 8th floor.
Beat hardcore mode.
Kill Dahlia without taking damage.
Beat any mode with Bouncer
Beat any mode with Gorton
Kill Dahlia after she spawns every set of enemies. Twice.
Spend all your money gambling.
Beat any mode with Tank.
Kill every boss.
Beat any mode with Dynomite.
Beat any mode with David Bowie
Have 69 bombs.
Have 1000 coin dollars.
Kill 1000 Jimbaabwehs.
Get a ghost and survive the floor.
Beat any mode with Gilead
Beat classic mode.
Kill Dahlia.
Beat the sixth floor.
Survive a dark floor.
Complete a hole floor without falling in.
Fall into a hole in a hole floor.
Complete a floor without taking damage.
Complete a floor without jumping.
Beat the fourth floor.
Complete a room without attacking.
Let a boss die to poison.
Run out of superweapon ammo.
Kill 100 Gileads.
Kill a Tenchi while it's invisible.
Beat the second floor.
Complete a room without taking damage.
Have more armor than health.
Have 30 items at once.
Beat any mode in under 15 minutes.
Beat any mode without taking items.
Beat hardcore mode without spending money.
Beat hardcore mode having gone into every room.
Get every item.
Use every weapon.
Get every achievement.