{"schemaVersion":1,"record":{"key":"mechanic/boss-fight-atlas--boss-boundary-attack","type":"mechanic","id":"boss-fight-atlas--boss-boundary-attack","lang":"en","title":"Boundary attack","summary":"A source at the arena boundary sends a threat into playable space.","updatedAt":"2026-10-22","status":"active","url":"https://gamemechanics.pro/en/knowledge/mechanic/boss-fight-atlas--boss-boundary-attack/","jsonUrl":"https://gamemechanics.pro/api/v1/knowledge/en/mechanic/boss-fight-atlas--boss-boundary-attack.json","markdownUrl":"https://gamemechanics.pro/content/knowledge/en/mechanic/boss-fight-atlas--boss-boundary-attack.md","aliases":[],"tags":["Boss fights","Space, movement, and perception"],"sourceIds":["source-be3c10532f14f200","source-a69b6c55489850b2","source-6f134fab3b095acb","source-938d01176a1635ea","source-75e04a087540638a","source-945019fe5d82d809","source-0b0aa37f1d6edbc8","source-8bb66b0ff7394aa3","source-83b0d4ca78ec8bbc","source-b96949457d584b59"],"sources":[{"id":"source-be3c10532f14f200","title":"Boss Fight Atlas: Boundary attack (RU)","url":"https://polyakovin.github.io/boss-fight-atlas/ru/mechanics/boundary-attack/","verifiedAt":null},{"id":"source-a69b6c55489850b2","title":"Boss Fight Atlas: Boundary attack (EN)","url":"https://polyakovin.github.io/boss-fight-atlas/en/mechanics/boundary-attack/","verifiedAt":null},{"id":"source-6f134fab3b095acb","title":"Kuro finale · Ori and the Blind Forest","url":"https://www.youtube.com/watch?v=Kx9DPTIDB_0&t=1s","verifiedAt":null},{"id":"source-938d01176a1635ea","title":"Shriek · Ori and the Will of the Wisps","url":"https://www.youtube.com/watch?v=DvuB8cImPIg&t=1165s","verifiedAt":null},{"id":"source-75e04a087540638a","title":"Leviathan (Eden's Gate: Inundation) · Final Fantasy XIV","url":"https://www.youtube.com/watch?v=9H9-GJmVqGE&t=170s","verifiedAt":null},{"id":"source-945019fe5d82d809","title":"GDC · Itay Keren — Boss Battle Design Fundamentals and Retrospective","url":"https://www.gdcvault.com/play/1024921/Boss-Up-Boss-Battle-Design","verifiedAt":null},{"id":"source-0b0aa37f1d6edbc8","title":"Xbox Wire — Escape Kuro's Clutches","url":"https://news.xbox.com/en-us/2019/09/20/pre-purchase-ori-and-the-blind-forest-definitive-edition-for-nintendo-switch/","verifiedAt":null},{"id":"source-8bb66b0ff7394aa3","title":"GameFAQs — Shriek","url":"https://gamefaqs.gamespot.com/xboxone/211254-ori-and-the-will-of-the-wisps/faqs/78217/willows-end","verifiedAt":null},{"id":"source-83b0d4ca78ec8bbc","title":"Final Fantasy XIV Online Wiki — Eden's Gate: Inundation","url":"https://ffxiv.consolegameswiki.com/wiki/Eden%27s_Gate:_Inundation","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":"A source at the arena boundary sends a threat into playable space."},{"id":"variants","title":"Variants","body":"### How the technique works\n\n<a id=\"boss-boundary-attack-rule\"></a>\n\n- A source at the arena boundary sends a threat into playable space. <a id=\"boss-boundary-attack-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-boundary-attack","title":"Boss fights","url":"https://gamemechanics.pro/en/mechanics/boss-fight-atlas/#boss-boundary-attack","categoryIds":["catalog-part-10"]}],"supersededBy":[],"attributes":{"preview":{"updatedAt":"2026-10-22","title":"Boundary attack","description":"A source at the arena boundary sends a threat into playable space.","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: a light wall enters from Radiance’s arena edge","alt":"Hollow Knight: a light wall enters from Radiance’s arena edge","markers":[{"x":96,"y":49,"label":"The threat enters from the boundary and crosses playable space"}]},"tips":["Signal incoming boundary threats, especially when their source is off camera."],"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"}}