---
key: mechanic/boss-fight-atlas--boss-part-break
type: mechanic
id: boss-fight-atlas--boss-part-break
lang: en
title: Part break
summary: Destroying a component changes the boss's abilities or vulnerability.
updatedAt: '2026-10-22'
status: active
url: >-
https://gamemechanics.pro/en/knowledge/mechanic/boss-fight-atlas--boss-part-break/
jsonUrl: >-
https://gamemechanics.pro/api/v1/knowledge/en/mechanic/boss-fight-atlas--boss-part-break.json
markdownUrl: >-
https://gamemechanics.pro/content/knowledge/en/mechanic/boss-fight-atlas--boss-part-break.md
aliases: []
tags:
- Boss fights
- Defense
sourceIds:
- source-84cb75432ffd2695
- source-ed8bc8c5f6ecabbc
- source-33149c582a572b1d
- source-605c17c8498b7c71
- source-963e2e086b258db3
- source-6983f00d379a0f7b
- source-aa30153cf812b085
- source-f529d50192e29e72
- source-df159132a7075f2e
sources:
- id: source-84cb75432ffd2695
title: 'Boss Fight Atlas: Part break (RU)'
url: 'https://polyakovin.github.io/boss-fight-atlas/ru/mechanics/part-break/'
verifiedAt: null
- id: source-ed8bc8c5f6ecabbc
title: 'Boss Fight Atlas: Part break (EN)'
url: 'https://polyakovin.github.io/boss-fight-atlas/en/mechanics/part-break/'
verifiedAt: null
- id: source-33149c582a572b1d
title: Dr. Kahl's Robot · Cuphead
url: 'https://www.youtube.com/watch?v=6anMOwVo7tc&t=25s'
verifiedAt: null
- id: source-605c17c8498b7c71
title: Skeletron Prime · Terraria
url: 'https://www.youtube.com/watch?v=8I2fVeypXFc&t=155s'
verifiedAt: null
- id: source-963e2e086b258db3
title: Slitherfang · Horizon Forbidden West
url: 'https://www.youtube.com/watch?v=duhcPDxl9nc&t=20s'
verifiedAt: null
- id: source-6983f00d379a0f7b
title: Capcom · breaking large-monster parts can prevent specific actions
url: >-
https://blog.playstation.com/2026/03/12/prepare-for-monster-hunter-stories-3-on-march-13-with-a-recap-of-the-rpg-series-so-far/
verifiedAt: null
- id: source-aa30153cf812b085
title: Guerrilla Games · machine armor can be stripped to change combat options
url: >-
https://www.guerrilla-games.com/read/15-minutes-of-new-gameplay-for-horizon-forbidden-west
verifiedAt: null
- id: source-f529d50192e29e72
title: Bad Robot Games · independently breakable boss panels and explicit repair
url: >-
https://blog.playstation.com/2026/04/28/4loop-designing-the-ominous-cube-shaped-scanner-boss/
verifiedAt: null
- id: source-df159132a7075f2e
title: Cuphead
url: 'https://www.youtube.com/watch?v=6anMOwVo7tc&t=38s'
verifiedAt: null
relations: []
placements:
- catalogId: boss-fight-atlas
id: boss-part-break
title: Boss fights
url: 'https://gamemechanics.pro/en/mechanics/boss-fight-atlas/#boss-part-break'
categoryIds:
- catalog-part-8
supersededBy: []
attributes:
preview:
updatedAt: '2026-10-22'
title: Part break
description: Destroying a component changes the boss's abilities or vulnerability.
image:
src: images/mechanics/boss-frame-6anmowvo7tc-38.webp
width: 854
height: 480
game: Cuphead
sourceUrl: 'https://www.youtube.com/watch?v=6anMOwVo7tc&t=38s'
originalUrl: 'https://www.youtube.com/watch?v=6anMOwVo7tc'
sourceFrameSeconds: 38
credit: Studio MDHR; gameplay capture by Boss Fight Database
rights: >-
Game graphics © Studio MDHR. Gameplay recording by Boss Fight Database.
Visible source markings preserved. All rights reserved; excluded from
MIT and CC BY 4.0.
caption: Destroyed components change Dr. Kahl’s robot
alt: Destroyed components change Dr. Kahl’s robot
markers:
- x: 66
'y': 55
label: Damaged body sections differ from intact components
tips:
- Connect a broken part to a visible change in attacks or defenses.
examples:
- title: Cuphead
url: 'https://www.youtube.com/watch?v=6anMOwVo7tc&t=38s'
endsAt: null
provenance: >-
Editorial reference index based on the 124 public Boss Fight Atlas mechanic
pages checked on 2026-10-20. Original concise RU/EN definitions by
gamemechanics.pro; source categories, game/boss associations and reference
URLs retained from the atlas. Linked materials retain their original rights;
references are upstream attributions, not independent verification.
license: CC-BY-4.0
codeLicense: MIT
attribution: gamemechanics.pro contributors
catalogKey: catalog/boss-fight-atlas
---
# Part break
id: boss-fight-atlas--boss-part-break
type: mechanic
key: mechanic/boss-fight-atlas--boss-part-break
lang: en
status: active
url: https://gamemechanics.pro/en/knowledge/mechanic/boss-fight-atlas--boss-part-break/
Destroying a component changes the boss's abilities or vulnerability.
## At a glance
[Cuphead](https://www.youtube.com/watch?v=6anMOwVo7tc&t=38s) · Game graphics © Studio MDHR. Gameplay recording by Boss Fight Database. Visible source markings preserved. All rights reserved; excluded from MIT and CC BY 4.0.
[Source recording](https://www.youtube.com/watch?v=6anMOwVo7tc), 38 s
1. Damaged body sections differ from intact components
- Connect a broken part to a visible change in attacks or defenses.
- [Cuphead](https://www.youtube.com/watch?v=6anMOwVo7tc&t=38s)
## How it works
Destroying a component changes the boss's abilities or vulnerability.
## Variants
### How the technique works
- Destroying a component changes the boss's abilities or vulnerability.
## Context and limits
A concise reference to all 124 Boss Fight Atlas mechanics across its 14 source sections. Each entry includes a definition, full RU/EN lesson links, game references and further reading retained from the source. Animations and detailed rules remain in the atlas.
## Connected materials
## Sources and provenance
Editorial reference index based on the 124 public Boss Fight Atlas mechanic pages checked on 2026-10-20. Original concise RU/EN definitions by gamemechanics.pro; source categories, game/boss associations and reference URLs retained from the atlas. Linked materials retain their original rights; references are upstream attributions, not independent verification.
- [Boss Fight Atlas: Part break (RU)](https://polyakovin.github.io/boss-fight-atlas/ru/mechanics/part-break/) (id: source-84cb75432ffd2695)
- [Boss Fight Atlas: Part break (EN)](https://polyakovin.github.io/boss-fight-atlas/en/mechanics/part-break/) (id: source-ed8bc8c5f6ecabbc)
- [Dr. Kahl's Robot · Cuphead](https://www.youtube.com/watch?v=6anMOwVo7tc&t=25s) (id: source-33149c582a572b1d)
- [Skeletron Prime · Terraria](https://www.youtube.com/watch?v=8I2fVeypXFc&t=155s) (id: source-605c17c8498b7c71)
- [Slitherfang · Horizon Forbidden West](https://www.youtube.com/watch?v=duhcPDxl9nc&t=20s) (id: source-963e2e086b258db3)
- [Capcom · breaking large-monster parts can prevent specific actions](https://blog.playstation.com/2026/03/12/prepare-for-monster-hunter-stories-3-on-march-13-with-a-recap-of-the-rpg-series-so-far/) (id: source-6983f00d379a0f7b)
- [Guerrilla Games · machine armor can be stripped to change combat options](https://www.guerrilla-games.com/read/15-minutes-of-new-gameplay-for-horizon-forbidden-west) (id: source-aa30153cf812b085)
- [Bad Robot Games · independently breakable boss panels and explicit repair](https://blog.playstation.com/2026/04/28/4loop-designing-the-ominous-cube-shaped-scanner-boss/) (id: source-f529d50192e29e72)
- [Cuphead](https://www.youtube.com/watch?v=6anMOwVo7tc&t=38s) (id: source-df159132a7075f2e)
CC-BY-4.0 · gamemechanics.pro contributors