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