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