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Expert Challenge

Last updated 2025-09-21

Completing Expert Challenge offers the chance to drop Higher Dimensional Data and Master Copies.
Each Expert Challenge has recommended Agent attributes and current intel to improve your chance of success.

Expert Challenge is a game system that allows players to spend Battery Charge Battery Charge and complete various challenges in exchange for Higher Dimensional Data and Master Copies. Players can choose the challenge level, which varies the amount and rank of rewards received. Expert Challenge can be accessed by talking to Lyla at the HIA Club.

Details

Expert Challenge is unlocked during Chapter 2: A Call From the Hollow's Heart (A) of Phaethon's Story.

Each type of challenge will feature a different Enemy, and will award a different type of Higher Dimensional Data, which can be used to level-up various Agent's Core Skills. Depending on the level of the challenge selected, either Audio Booster Master Copy, or Noise Reduction Master Copy will also be awarded, allowing the player to craft Item Rank B-Rank or Item Rank A-Rank Drive Discs at Bardic Needle.

The player can also select a level for the enemies to be at during the challenge, with Level 25 being unlocked by default. Higher levels can be unlocked for each Inter-Knot Reputation Rank the player achieves:

  • Level 25 (default) Certified Proxy Certified Proxy
  • Level 35 requires Senior Proxy Senior Proxy
  • Level 45 requires Elite Proxy Elite Proxy
  • Level 55 requires Legendary Proxy Legendary Proxy

No matter the level selected, each challenge will cost either Battery Charge Battery Charge ×40 or Battery Charge Battery Charge ×80, solely depending on whether or not Burnout Mode is turned on.

Immersive Mode

Immersive Mode is a game system unlocked at Inter-Knot Level 30. It primarily affects Combat Simulation and Expert Challenge at the HIA. When toggled on, in-game time will no longer pass after having undertaken challenges.

Burnout Mode

Added in Version 1.6, Burnout Mode allows the player to consume double the usual amount of battery charge (80 instead of 40), in order to receive double the amount of rewards in a single Expert Challenge. Burnout Mode is only available for stages that award Higher Dimensional Data that are used by the limited AgentRank S-Rank Agents that are currently-running on the Exclusive Channel.

List of Challenges

There are 15 stages:

Name Recommended
Attributes
Enemy List Rewards Version
Expert Challenge: Notorious - Dullahan
  • Icon Ice Ice
  • Icon Ether Ether
  • 1.0
    Expert Challenge: Troublemaker - Wanted Enforcer
  • Icon Fire Fire
  • Icon Physical Physical
  • 1.0
    Expert Challenge: Notorious - Armored Hati
  • Icon Ice Ice
  • Icon Ether Ether
  • 1.0
    Expert Challenge: Hans - Energized
  • Icon Fire Fire
  • 1.0
    Expert Challenge: Typhon Slugger
  • Icon Electric Electric
  • 1.0
    Expert Challenge: Rampant Brute
  • Icon Fire Fire
  • Icon Physical Physical
  • 1.1
    Expert Challenge: Doppelganger - Jane
  • Icon Physical Physical
  • 1.2
    Expert Challenge: Thracian
  • Icon Ice Ice
  • Icon Ether Ether
  • 1.4
    Expert Challenge: Lumberjack
  • Icon Electric Electric
  • 1.6
    Expert Challenge: Miasma Ravager - Avarus
  • Icon Fire Fire
  • Icon Ether Ether
  • 2.0
    Expert Challenge: Sacrifice - Heretic Jester
  • Icon Electric Electric
  • Icon Physical Physical
  • 2.1
    Expert Challenge: Miasmic Komano Manato
  • Icon Ice Ice
  • 2.3
    Expert Challenge: Airspace Sentinel
  • Icon Ice Ice
  • Icon Wind Wind
  • 3.0
    Expert Challenge: Miasma Walker - Scorpse
  • Icon Ether Ether
  • Icon Physical Physical
  • 2.5
    Expert Challenge: Sacrifice - Covenant Guardian
  • Icon Fire Fire
  • Icon Physical Physical
  • 2.6

    Other Languages

    LanguageOfficial Name
    EnglishExpert Challenge
    Chinese
    (Simplified)
    专业挑战室
    Zhuānyè Tiǎozhàn-shì
    Chinese
    (Traditional)
    專業挑戰室
    Zhuānyè Tiǎozhàn-shì
    Japaneseエキスパート挑戦
    Ekisupāto Chōsen
    Korean전문가 도전룸
    Jeonmun'ga Dojeollum
    SpanishSala de desafío experto
    FrenchDéfi expert
    RussianЭкспертный вызов
    Ekspertnyy vyzov
    Thaiห้องท้าทายมืออาชีพ
    VietnamesePhòng Khiêu Chiến Chuyên Nghiệp
    GermanExperten-Herausforderung
    IndonesianRuang Tantangan Profesional
    PortugueseDesafio de Especialista

    Change History

    Version 3.0


    Version 2.6


    Version 2.5


    Version 2.3


    Version 2.1


    Version 2.0

    • A new challenge was added: Expert Challenge: Miasma Ravager - Avarus
    • Enables Immersive Mode for Combat Simulation and Expert Challenge by default. No manual switching is required. (Immersive Mode unlocks at Inter-Knot Lv. 30).

    Version 1.6

    • A new challenge was added: Expert Challenge: Lumberjack
    • Adds Burnout Mode to Expert Challenge:
      • For selected challenge targets, Expert Challenge will periodically activate Burnout Mode, where Proxies can consume double the Battery Charge required to receive double rewards. Burnout Mode will only be active for those challenges that provide the Higher Dimensional Data materials required by the current limited S-Rank Agents.

    Version 1.5

    • Added a new feature to quickly toggle between mouse/keyboard and controller control in Combat Simulation, Expert Challenge, Investigator Training Course, and Simulated Battle Trial.

    Version 1.4


    Version 1.2


    Version 1.1


    Version 1.0

    • Expert Challenge was released.

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