{"schemaVersion":1,"record":{"key":"mechanic/boss-fight-atlas--boss-shrinking-safe-area","type":"mechanic","id":"boss-fight-atlas--boss-shrinking-safe-area","lang":"en","title":"Shrinking safe area","summary":"The arena's safe portion gradually contracts.","updatedAt":"2026-10-22","status":"active","url":"https://gamemechanics.pro/en/knowledge/mechanic/boss-fight-atlas--boss-shrinking-safe-area/","jsonUrl":"https://gamemechanics.pro/api/v1/knowledge/en/mechanic/boss-fight-atlas--boss-shrinking-safe-area.json","markdownUrl":"https://gamemechanics.pro/content/knowledge/en/mechanic/boss-fight-atlas--boss-shrinking-safe-area.md","aliases":[],"tags":["Boss fights","Arena"],"sourceIds":["source-b06b04ea71ee6ca9","source-bdf6fd9638bfd7d0","source-47cd13290fc05721","source-3d98aa5b859ad11b","source-35138ffd14048792","source-baf38070a8989361","source-945019fe5d82d809","source-b96949457d584b59"],"sources":[{"id":"source-b06b04ea71ee6ca9","title":"Boss Fight Atlas: Shrinking safe area (RU)","url":"https://polyakovin.github.io/boss-fight-atlas/ru/mechanics/shrinking-safe-area/","verifiedAt":null},{"id":"source-bdf6fd9638bfd7d0","title":"Boss Fight Atlas: Shrinking safe area (EN)","url":"https://polyakovin.github.io/boss-fight-atlas/en/mechanics/shrinking-safe-area/","verifiedAt":null},{"id":"source-47cd13290fc05721","title":"High Dragun · Enter the Gungeon","url":"https://www.youtube.com/watch?v=aKALjUZqhXA&t=103s","verifiedAt":null},{"id":"source-3d98aa5b859ad11b","title":"Absolute Radiance · Hollow Knight","url":"https://www.youtube.com/watch?v=bgh04-wCRyk&t=20s","verifiedAt":null},{"id":"source-35138ffd14048792","title":"Nemesis · Returnal","url":"https://www.youtube.com/watch?v=J8BTbUNDknI&t=100s","verifiedAt":null},{"id":"source-baf38070a8989361","title":"Enemy Attacks and Telegraphing · Mike Stout","url":"https://www.gamedeveloper.com/design/enemy-attacks-and-telegraphing","verifiedAt":null},{"id":"source-945019fe5d82d809","title":"Boss Up: Boss Battle Design · GDC Vault","url":"https://www.gdcvault.com/play/1024921/Boss-Up-Boss-Battle-Design","verifiedAt":null},{"id":"source-b96949457d584b59","title":"Hollow Knight","url":"https://www.youtube.com/watch?v=bgh04-wCRyk&t=62s","verifiedAt":null}],"sections":[{"id":"principle","title":"How it works","body":"The arena's safe portion gradually contracts."},{"id":"variants","title":"Variants","body":"### How the technique works\n\n<a id=\"boss-shrinking-safe-area-rule\"></a>\n\n- The arena's safe portion gradually contracts. <a id=\"boss-shrinking-safe-area-definition\"></a>"},{"id":"context","title":"Context and limits","body":"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."}],"relations":[],"placements":[{"catalogId":"boss-fight-atlas","id":"boss-shrinking-safe-area","title":"Boss fights","url":"https://gamemechanics.pro/en/mechanics/boss-fight-atlas/#boss-shrinking-safe-area","categoryIds":["catalog-part-5"]}],"supersededBy":[],"attributes":{"preview":{"updatedAt":"2026-10-22","title":"Shrinking safe area","description":"The arena's safe portion gradually contracts.","image":{"src":"images/mechanics/boss-final-bgh04-wcryk-62.webp","width":640,"height":360,"game":"Hollow Knight","sourceUrl":"https://www.youtube.com/watch?v=bgh04-wCRyk&t=62s","originalUrl":"https://www.youtube.com/watch?v=bgh04-wCRyk","sourceFrameSeconds":62,"credit":"Team Cherry; gameplay capture by PrizMatex","rights":"Game graphics © Team Cherry. Gameplay recording by PrizMatex. Original visible source markings retained. All rights reserved; excluded from portal MIT and CC BY 4.0.","caption":"Hollow Knight: spikes and a light wall compress the safe area","alt":"Hollow Knight: spikes and a light wall compress the safe area","markers":[{"x":34,"y":89,"label":"The spike-covered floor leaves less room to evade"}]},"tips":["Check that the remaining safe area is reachable given player speed and other threats."],"examples":[{"title":"Hollow Knight","url":"https://www.youtube.com/watch?v=bgh04-wCRyk&t=62s"}]}},"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"}}