Visual AppearanceOutfit: He wears a blue hoodie, a white t-shirt, black shorts with white stripes, and pink slippers.Face: He has a permanent, wide grin and large eye sockets with small white pupils that disappear when he is serious.Magic: His left eye glows flashing light blue and yellow during intense combat.Personality & TraitsLazy: He loves taking naps and slacking off from his job as a sentry.Puns: He constantly tells bad skeleton-themed jokes and puns, which annoys his younger brother, Papyrus.Protective: He cares deeply for Papyrus and watches over the player character throughout their journey.Awareness: He possesses a mysterious awareness of the game’s timelines, save files, and resets.Role in the GamePacifist Route: He acts as a guide, judge, and friendly ally who hangs out with you at various restaurants.Genocide Route: If you kill every monster in the game, Sans becomes the final boss.Difficulty: His boss battle is notoriously one of the most difficult and iconic fights in modern gaming history, featuring breaking game mechanics and a memorable theme song called "Megalovania"

Combat Stats and MechanicsHP (Health): 6,000 HP.ATK (Attack): 19 ATK.DEF (Defense): 0 DEF.Main Attack: He fires white, circular projectiles called "Friendliness Pellets" that move in ring formations or home in directly on your soul.Vines: He can summon large green vines from the ground to block your path or trap your soul.Save/Load Powers: Before your arrival, Flowey possessed the highest amount of Determination in the Underground. This allowed him to save, load, and reset the timeline at will, a power he loses to you once you enter the Underground.Narrative RoleThe Tutorial Subversion: He acts as the game's initial "guide," subverting standard RPG tropes by trying to murder you during what looks like a harmless game tutorial.The Stalker: After Toriel saves you from him, Flowey secretly follows you throughout your entire journey. You can occasionally catch a glimpse of him popping back into the ground if you quickly re-enter a room.The Meta-Narrative Narrator: He is fully aware that he is in a video game. He frequently breaks the fourth wall, mocks the player's choices, and remembers what you did even if you reset the game or load an old save file

Character: Loud, kind, innocent, loves puzzles and spaghetti. Wears a costume with a red scarf.Combat: 680 HP. Soul turns blue (gravity). Never kills; traps you in a doghouse at 1 HP.Lore: Sans is his lazy brother. Undyne is his guard mentor.