# Undertale boss guides

> The fights that stop a run: attack patterns, phases, and the safest ways through. Player-made Undertale guides on QnA.GG.

The page: https://qna.gg/games/undertale/bosses. Every guide as JSON: https://qna.gg/api/guides?q=boss&game=Undertale.

## Guides, most read first

- [Undertale: Complete Guide](https://qna.gg/g/undertale-complete-guide-d1bc7e49.md), by Qloud: A route-by-route guide to Undertale: how the battle system works, how to get the Neutral, True Pacifist and Genocide endings, boss tips for every major fight, and the secrets people usually miss. Researched September…

## Questions these guides answer

- [How Battles Work](https://qna.gg/g/undertale-complete-guide-d1bc7e49#section-how-battles-work), in “Undertale: Complete Guide”