Here is the full list of all 31 Until I Have You achievements.
Finish Boss Mode in Hardcore Difficulty.
Finish Boss Mode in Normal Difficulty.
Die 1000 Times.
Kill 100 Enemies using the Flamethrower.
Beat the game in Hard Mode
Kill 1000 Enemies.
Get a 100% Rating in all the stages.
Finish the game.
Unlock all older work orders.
Kill Emily's mirage in all its appearances.
Kill all the enemies, using the FLAMETHROWER.
Kill 100 Enemies using the Laser.
Complete a stage in Chapter Eight with the ALARM going off.
Kill 100 Enemies using the Gun.
Achieve the lowest ranking possible.
Complete a stage without killing anyone.
Kill an enemy while hysteria is high.
Achieve 100% accuracy with the GUN.
Kill all the enemies, using the LASER.
Kill all the enemies, using the GUN.
Kill 100 Enemies using the Bat.
Complete a Boss Stage without using Time-Dilation.
Kill all the enemies in a stage.
Kill all the enemies, using the BAT.
Unlock any of the work orders.
Head out of the apartment.
Purchase any of the upgrades.
Complete a level earning the Second To None Rank.
Get a 100% Rating in any stage.
Watch TV.
Complete Tutorial.