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