Torn Between Universes (Underfell and Undertale Sans X Reader) Navigating the Core Cheyanne From what I've heard, this place is a maze of nothing but hallways, lasers, enemies, and pointless rooms" As the three of you find your way through the core by trial and error, you discover that he's right One hallway leads you to another, whichWaterfall 18 kills (Undyne the Undying) Hotland/Core 40 kills (Mettaton NEO) You don't need to kill every enemy you encounter, you're allowed to flee from or spare enemies, except for a select few), but you must also kill every unique enemy you encounter This includes Shyren and Snowdrake Although the Shyren encounter will happen even ifThe Ruins are the first area you will encounter in Undertale after you have woken up from your fall to the Underground advertisement You will need to kill creatures as well as Toriel to meet Hotland Enemies And Bosses Undertale Amino Undertale genocide core no enemies