Episode 09/BGM

BGM	In-game use	Remarks
黯影风暴 m_bat_ghosthunter01	Episode 09 operations except 9-19 and H9-6, which uses m_bat_ghosthunter02 instead	Released as part of Arknights OST 4.
蔓延恨意 m_bat_ghosthunter02	9-19 and H9-6	Released as part of Arknights OST 4.

Arknights BGMs

Main Theme	Episode 05 • Episode 06 • Episode 07 • Episode 08 • Episode 09 • Episode 10 • Episode 11 • Episode 12 • Episode 13
Intermezzi	Darknights Memoir • A Walk in the Dust • Under Tides • Lone Trail
Side Stories	Grani and the Knights' Treasure • Heart of Surging Flame • Code of Brawl • Twilight of Wolumonde • The Great Chief Returns • Maria Nearl • Mansfield Break • Who is Real • Operation Originium Dust • Dossoles Holiday • Break the Ice • Invitation to Wine • Guide Ahead • Lingering Echoes • Ideal City • Dorothy's Vision • Il Siracusano • What the Firelight Casts • Where Vernal Winds Will Never Blow • A Flurry to the Flame • Hortus de Escapismo • So Long, Adele • Come Catastrophes or Wakes of Vultures • Zwillingstürme im Herbst
Contingency Contract	Operation Barrenland • Operation Pyrite • Operation Blade • Operation Cinder • Operation Lead Seal • Operation Spectrum • Operation Wild Scales • Operation Pine Soot • Operation Dawnseeker • Operation Deepness • Operation Ashring • Operation Fake Waves • Operation Base Point • Battleplan Pyrolysis
Miscellaneous	Ceobe's Fungimist • Multivariate Cooperation Defence Protocols • Fire Within the Sand • Pinch-Out Experimental Operation

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