About

The human Frisk falls into the Underground and meets Flowey. Flowey pretends to be kind but attempts to ambush Frisk. However, Toriel appears and saves Frisk. Toriel takes Frisk to the Ruins and helps them navigate various puzzles and monsters. Frisk eventually stays with Toriel, but when Frisk tries to leave the Underground, Toriel stops them. Ultimately, Frisk fights Toriel and can choose to kill her or spare her. After leaving the Ruins, Frisk heads to Snowdin. There, they meet Papyrus and Sans. Papyrus pursues Frisk to capture a human and join the Royal Guard. Depending on the player's choices, Frisk can become friends with Papyrus or face different outcomes through battle. In Waterfall, Undyne hunts Frisk. Undyne views humans as enemies and attacks fiercely, but the relationship changes based on Frisk's choices. Here, stories related to Alphys and various secrets of the Underground are gradually revealed. In Hotland, Frisk meets Alphys and Mettaton. Mettaton puts on a show with various broadcasts and trials for Frisk, while Alphys tries to help. Afterward, Frisk passes through the CORE and heads to New Home. In New Home, the history of the Underground and the war between humans and monsters are revealed. Frisk finally meets King Asgore. Asgore intends to collect human souls to break the barrier and lead the monsters to the surface. After the fight with Asgore, Flowey reappears. Hidden truths are revealed, and the final situation changes significantly based on previous choices and actions. If the player consistently made peaceful choices, Frisk becomes friends with the monsters and reunites with Asriel Dreemurr. Asriel shakes the world with immense power, but through the memories and emotions of Frisk and the monsters, he eventually regains his true self. Conversely, if many monsters were killed, the Underground becomes increasingly desolate, and major figures disappear or fear Frisk. Finally, Sans steps forward to fight Frisk to stop them. Pacifist Route: Do not kill any monsters. Spare Toriel and improve the relationship, and spare Papyrus to become friends. Spare Undyne and become friends, and develop a relationship with Alphys. After proceeding with the Lab incident, face Asgore. Flowey absorbs the human souls, and Asriel appears with god-like power. In the final battle, Asriel regains his past and emotions through the memories of Frisk and their friends. Asriel's power fades, and the possibility for monsters to leave the barrier arises. Most major characters survive, and their relationships and futures change positively. Neutral Route: Kill some monsters and spare others. The reactions of characters and subsequent regions change depending on who was killed. The survival of major characters is continuously reflected in the story. Surviving characters may trust or be wary of Frisk. After facing Asgore, Flowey intervenes, steals the souls, and transforms into a powerful form. Flowey's dialogue and reactions change based on the player's actions. Finally, it leads to one of several endings depending on which characters were killed or spared. Genocide Route: Continuously seek out and defeat monsters in each region. Once a certain number of monsters are defeated, the region becomes empty, and the music and atmosphere turn dark. NPCs disappear or begin to fear Frisk. Kill Toriel and Papyrus, and Undyne awakens as Undyne the Undying to stop Frisk. Engage in an extreme battle with Undyne, while Alphys evacuates the survivors. Monsters in Hotland and the CORE also disappear, leading to a confrontation with Mettaton NEO. Afterward, Sans appears as the final defender and battles Frisk. After defeating Sans, kill Asgore and Flowey, and Chara appears. Ultimately, Frisk's actions lead to the destruction of the world itself. The core change is that the Pacifist Route focuses on character survival, relationships, and redemption; the Neutral Route varies the characters, world, and ending based on targets and choices; and the Genocide Route desolates the world as killing progresses, with characters becoming hostile or dying, eventually leading to the world's destruction. Previous choices must be remembered and reflected in subsequent dialogue, relationships, events, combat, and endings.