Flowey (/ˈflaʊi/) is the first major character that the protagonist encounters in Undertale. Flowey serves as the main antagonist for the Neutral and True Pacifist routes, and could be considered a deuteragonist within the Genocide Route. He introduces the player to the mechanics of encounters by sharing "friendliness pellets," which are actually harmful bullets, revealing his philosophy of "KILL or be KILLED." He serves as the final boss of the Neutral Route.