Achievement: Indomitable Soul
This is obtained by executing 50 rapid-recoveries. When fighting most enemies, if you lose all your armor and Enoch's eyes begin to close, you rapidly button-mash right and left bumper and x and a as fast as you can to recover fully and get back into the fight. Each time you do this it will be harder and harder to recover, until you cannot execute the rapid recover in time and you get a game over sending you back to your last auto-save.
Note: This count is totaled up across all saves, reloads, etc- it is not tied to one particular save file.