Temmie (/ˈtɛ. miː/) is a species of monster in the Underground. They appear as a unique enemy in Waterfall, residents of Temmie Village, and the vendor of Tem Shop. Contrary to popular belief, killing Temmie accrues EXP and is considered a kill by the game, which will cause a True Pacifist Route attempt to fail. Temmies resemble dogs, with cat-like ears on top of their heads as well as dog ears on the sides, shoulder length black hair, and blue shirts, excluding the Temmie Shopkeeper, who has gray hair and a striped blue and yellow shirt instead. Temmie Chang says that Betty Kwong designed Temmie originally. Appearance. Temmie seems to be a stuffed doll resembling a white-furred cat with dog ears,while having her cat ears on the top of her head. She wears a purple long-sleeved shirt with black stripes. She also has grey hair that holds her four ears.