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