During chapter 4 you will come to a room with many panels that are missing, they have blue lines coming from them. Do not step on them as they will instantly kill you. You need to get monsters on them and kill them with it and you will get the achievement. To do this have your stasis gauge full, hit them with stasis and then push them by walking into them with your body until they fly up and die. Make sure you don't go with them. You should have just enough enemies, if you do happen to run out and still don't have the achievement there will be a few more panels on chapter 9.