---
key: mechanic/metroidbrainia--family-03
type: mechanic
id: metroidbrainia--family-03
lang: en
title: Discovering movement rules
summary: >-
Players discover a non-obvious traversal rule and reach new routes without
necessarily gaining a character upgrade.
updatedAt: '2026-10-22'
status: active
url: 'https://gamemechanics.pro/en/knowledge/mechanic/metroidbrainia--family-03/'
jsonUrl: >-
https://gamemechanics.pro/api/v1/knowledge/en/mechanic/metroidbrainia--family-03.json
markdownUrl: >-
https://gamemechanics.pro/content/knowledge/en/mechanic/metroidbrainia--family-03.md
aliases: []
tags:
- Metroidbrainia
- Mechanics catalog
sourceIds:
- source-96525dfaaaf3de7c
- source-bac22fc4230e6976
sources:
- id: source-96525dfaaaf3de7c
title: Description of Leap Year
url: 'https://store.steampowered.com/app/2951770/Leap_Year/'
verifiedAt: null
- id: source-bac22fc4230e6976
title: Hollow Knight
url: 'https://store.steampowered.com/app/367520/'
verifiedAt: null
relations: []
placements:
- catalogId: metroidbrainia
id: family-03
title: Metroidbrainia
url: 'https://gamemechanics.pro/en/mechanics/metroidbrainia/#family-03'
categoryIds:
- section-1
supersededBy: []
attributes:
preview:
updatedAt: '2026-10-22'
title: Discovering movement rules
description: >-
Players discover a non-obvious traversal rule and reach new routes without
necessarily gaining a character upgrade.
image:
src: images/mechanics/systems-hollow-knight-extra-08.webp
width: 1440
height: 810
game: Hollow Knight
sourceUrl: 'https://store.steampowered.com/app/367520/'
originalUrl: >-
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/367520/ss_946e83ea924eff46a93e14e841bdbb1accd1654c.1920x1080.jpg?t=1776125684
credit: Team Cherry / Team Cherry
rights: © Team Cherry / Team Cherry. All rights reserved.
caption: A downward strike allows a bounce off a mushroom
alt: A downward strike allows a bounce off a mushroom
markers:
- x: 49
'y': 59
label: The mushroom becomes a surface for gaining extra momentum
tips:
- Distinguish learning a technique from improving reaction speed.
examples:
- title: Hollow Knight
url: 'https://store.steampowered.com/app/367520/'
endsAt: null
provenance: >-
Original editorial design catalog consolidated from project discussions on
2026-10-20. Complete discussion item lists and contextual limitations are
preserved; linked primary sources support specific techniques, not the entire
classification. English translation was prepared with machine assistance and
editorial review.
license: CC-BY-4.0
codeLicense: MIT
attribution: gamemechanics.pro contributors
catalogKey: catalog/metroidbrainia
---
# Discovering movement rules
id: metroidbrainia--family-03
type: mechanic
key: mechanic/metroidbrainia--family-03
lang: en
status: active
url: https://gamemechanics.pro/en/knowledge/mechanic/metroidbrainia--family-03/
Players discover a non-obvious traversal rule and reach new routes without necessarily gaining a character upgrade.
## At a glance
[Hollow Knight](https://store.steampowered.com/app/367520/) · © Team Cherry / Team Cherry. All rights reserved.
1. The mushroom becomes a surface for gaining extra momentum
- Distinguish learning a technique from improving reaction speed.
- [Hollow Knight](https://store.steampowered.com/app/367520/)
## How it works
What is important here is, first of all, a revision of the movement model. A simple improvement in reaction in itself does not belong to this type. In Leap Year, the developer directly ties understanding the game's secrets to accessing new areas. This is an example of a platformer where discoveries change the available navigation. Description of Leap Year.
## Variants
### Variants and applications
- Unusual jump rule. The possibility, height or result of a jump depends on a non-obvious condition
- Conservation and transfer of momentum. Speed can be accumulated, transferred between surfaces, or converted into other motion
- Conditional fall safety. Danger is determined by the way you fall, the character's condition, or the landing surface
- Unobvious walkable surface. Wall, ceiling, edge of object or decorative structure allows movement
- Dropping as transport. Impact, explosion or collision allows you to enter an inaccessible area
- Moving on objects. An item, creature, or mechanism can carry a character, although this is not initially obvious
- Using environmental forces. Flows of air, liquid, gravity or other fields form a hidden transport system
## Context and limits
In metroidbrainia, progression depends heavily on the player's knowledge: an open rule changes the available actions, routes, or decisions. 91 mechanics in 12 groups, progression techniques, training techniques and edge cases are stored here. For a project, check what knowledge is acquired, how it is derived, what it reveals, and where it is reused. Specific game solutions are not disclosed.
## Connected materials
## Sources and provenance
Original editorial design catalog consolidated from project discussions on 2026-10-20. Complete discussion item lists and contextual limitations are preserved; linked primary sources support specific techniques, not the entire classification. English translation was prepared with machine assistance and editorial review.
- [Description of Leap Year](https://store.steampowered.com/app/2951770/Leap_Year/) (id: source-96525dfaaaf3de7c)
- [Hollow Knight](https://store.steampowered.com/app/367520/) (id: source-bac22fc4230e6976)
CC-BY-4.0 · gamemechanics.pro contributors