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