從第10章重頭開始，一路打到大鑽頭的房間，在大鑽頭下來後先緩速，然後故意給敵人打一下，被打到後就馬上按暫停，選Save & Quit，之後回到主畫面，一樣Solo戰役點下去，接著選Restart from last save，你會回到大鑽頭的門口，這時候就按照一般無傷過法再過一次，我中間是沒有補血啦，總之一樣怪全清，清完之後動畫結束，馬上衝去出口，到了出口門剛打開成就就跳出來了。
For those of you that are not getting this achievement after doing it correctly read below! I came across this method on the Xbox Forums and it worked! Once you get to the drill and start it, purposely get hit by a necromorph. When you do, choose save and quit. Then choose Restart from LAST save. Then proceed through the drill section again without taking damage. Once done, just head to the door to the next area. The moment I was a foot away from the door, it popped. Not sure about PS3 though.