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