Full list of all 48 Killer is Dead - Nightmare Edition achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
All achievements completed
Ranked AAA executioner on 44 missions.
Cleared all episodes on Hard Mode.
Received 20 rewards from the beauties.
Gave a present 50 times or more.
Cleared all episodes on Normal Mode.
Collected all female costumes.
Made Scarlett your prisoner in body and soul.
Ranked AAA executioner on 24 missions.
Cleared all challenge missions.
Killed 100 enemies using the "Head Shot."
Cleared 12 challenge missions.
Ranked AAA executioner on 12 missions.
Cleared 6 challenge missions.
Cleared all episodes on Very Hard Mode.
Unlocked all challenge missions.
Increased all sub-weapons to maximum upgrade level.
Increased BLOOD to maximum upgrade level.
Got revived by Mika 20 times.
Increased HEALTH to maximum upgrade level.
Have a total of $100 million in cash.
Made Koharu your prisoner in body and soul.
Made Natalia your prisoner in body and soul.
Cleared all sub-missions.
Changed costume to Ulti-mondo.
Completed Episode 12.
Cleared all missions.
Increased all Attack and Special skills.
Completed Episode 11.
Completed Episode 10.
Unlocked 12 challenge missions.
Completed Episode 9.
Sliced an enemy upward and finished it in the air.
Completed Episode 8.
Cleared 6 sub-missions.
Completed Episode 7.
Killed an enemy using the "Burst Rush."
Cleared 3 sub-missions.
Unlocked 6 challenge missions.
Completed Episode 6.
Completed Episode 5.
Completed Episode 4.
Killed an enemy with an enemy attack.
Completed Episode 3.
Completed Episode 2.
Completed Episode 1.