{"schemaVersion":1,"record":{"key":"mechanic/metroidvania--family-group-15","type":"mechanic","id":"metroidvania--family-group-15","lang":"en","title":"Bosses and Major Challenges","summary":"A major enemy tests learned actions and connects mastery to access to the next stage.","updatedAt":"2026-10-22","status":"active","url":"https://gamemechanics.pro/en/knowledge/mechanic/metroidvania--family-group-15/","jsonUrl":"https://gamemechanics.pro/api/v1/knowledge/en/mechanic/metroidvania--family-group-15.json","markdownUrl":"https://gamemechanics.pro/content/knowledge/en/mechanic/metroidvania--family-group-15.md","aliases":[],"tags":["Metroidvanias","Fight"],"sourceIds":["source-bac22fc4230e6976"],"sources":[{"id":"source-bac22fc4230e6976","title":"Hollow Knight","url":"https://store.steampowered.com/app/367520/","verifiedAt":null}],"sections":[{"id":"principle","title":"How it works","body":"Major opponents and challenges test mastered actions and open up further access."},{"id":"variants","title":"Variants","body":"### Variants and applications\n\n<a id=\"family-group-15-variants\"></a>\n\n- The boss is like a test of a mastered ability. Rule: The fight requires the use of a recently acquired action in new conditions. <a id=\"variant-mv-165\"></a>\n- Phase change. Rule: A player's health, event, or action changes the set of skirmish rules. <a id=\"variant-mv-166\"></a>\n- Destruction of body parts. Rule: Destroying individual parts changes the boss' attacks and vulnerabilities. <a id=\"variant-mv-167\"></a>\n- Variable arena. Rule: Platforms, safe zones and geometry change as the battle progresses. <a id=\"variant-mv-168\"></a>\n- Summon additional enemies. Rule: The boss creates threats between which attention must be divided... <a id=\"variant-mv-169\"></a>\n- Combat puzzle. Rule: Victory requires completing a chain of interactions, not just dealing damage. <a id=\"variant-mv-170\"></a>\n- Platforming during combat. Rule: Overcoming the movement area is necessary for survival or access to the goal. <a id=\"variant-mv-171\"></a>\n- Chase and escape. Rule: The objective is to reach a safe point with a moving threat. <a id=\"variant-mv-172\"></a>\n- Test of survival. Rule: The player sustains a sequence of attacks until a given end condition is reached. <a id=\"variant-mv-173\"></a>\n- A special way to win. Rule: The scenario allows for bypass, neutralization, or an alternative ending to the conflict. <a id=\"variant-mv-174\"></a>"},{"id":"context","title":"Context and limits","body":"The author's working taxonomy of mechanics, access rules, structural patterns and support systems. This is not an industry standard or a statement that every item is required or present in every game. Hybrids and support are highlighted separately. Any finite list is limited by the level of detail; combinations and new options remain open."}],"relations":[],"placements":[{"catalogId":"metroidvania","id":"family-group-15","title":"Metroidvanias","url":"https://gamemechanics.pro/en/mechanics/metroidvania/#family-group-15","categoryIds":["section-5"]}],"supersededBy":[],"attributes":{"preview":{"updatedAt":"2026-10-22","title":"Bosses and Major Challenges","description":"A major enemy tests learned actions and connects mastery to access to the next stage.","image":{"src":"images/mechanics/systems-hollow-knight-extra-02.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_a81e4231cc8d55f58b51a4a938898af46503cae5.1920x1080.jpg?t=1776125684","credit":"Team Cherry / Team Cherry","rights":"© Team Cherry / Team Cherry. All rights reserved.","caption":"Grimm before the duel begins","alt":"Grimm before the duel begins","markers":[{"x":36,"y":64,"label":"The boss occupies a dedicated challenge arena"}]},"tips":["Test learned actions through new combinations of threats."],"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/metroidvania"}}