Spider Cider is a consumable item sold at the Spider Bake Sales in the Ruins and Hotland.
- Using a Spider Cider or Spider Donut during Muffet's fight ends it immediately.
- If the Cider is obtained by cheating, Muffet scolds the protagonist for being stingy, but ends her fight regardless.
- Buying a Spider Cider from the Spider Bake Sale in Hotland prevents the fight with Muffet entirely, except in the Genocide Route.
- Some spiders crawled down and gave you a jug. [Obtain]