Samage.3501

I just want to say thank you because this trick got me the achieve on my first try after about 10 or so attempts with other strategies. For anyone else that finds this thread, you can also remove all of your armour and you will die from only two crystals, but after destroying the eye three times the game seems to only spawn one crystal in each wave, so you need to be lucky or good at predicting where you need to be to get hit by two of them, whereas for the first few waves you can basically sit still and get hit. Afterwards I just kind of targeted whatever weak point I wanted as soon as they showed up and spammed the 1 key. Didn't see any of them visually lose health or be destroyed but I got the achievement when it went to the last zone.