u/JKB2K16

Hello, I have a question, how do I finish this? I was in the nightmare zone for about 20 minutes and killed everyone I saw and I still have 0. Please advise me on how to do this because I'm desperate.

https://preview.redd.it/y5m4zp48nlyg1.jpg?width=477&format=pjpg&auto=webp&s=12d6316900aef2bcbf472ebc8605b3f4e99f5831