Ape Out

As the description describes, you have to complete any album without taking damage. You can tell if you're on track for this achievement if you can see the ape a star background icon in the top right hand corner of the pause menu.

Unlike the PACIFIST achievement , you cannot die or restart the chapter this time - you will need to do this in a single run. I have found that immediately quitting to the main menu after taking damage and resuming the album may give you another chance, but this doesn't seem deterministic. I have gone to the main menu and the icon is gone the first time restarting a chapter, and sometimes I can restart a chapter multiple times with no problem. I've found that the most common result I've found is that I can restart each chapter once only.


I can't confirm whether completing an arcade run without taking damage will also unlock this, as I completed this during a standard run. However, practicing for this achievement will make the Subject 4 arcade mode much easier to clear (even though the achievement for that is unfortunately glitched right now).