Fighting Game · Guides & deep dives

Karaoke Rhythm Mode

alt-character song links, localized selections, and licensed-music metadata where contracted.

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Section 132 is implemented as the FV2KaraokeRhythmModeCatalog in V2Audio. The catalog is initialized by UV2AudioBlueprintLibrary::BuildDefaultKaraokeRhythmModeCatalog, exposed through UV2AudioConfigAsset, and registered by UV2AudioSubsystem.

Karaoke Mode#

  • Each launch karaoke entry is a per-fighter signature song with two alt-character song links, localized selections, and licensed-music metadata where contracted.
  • Rhythm inputs cover timed taps, sustained held notes, and drift-tilt vibrato.
  • Scoring is deterministic and off rollback: pitch accuracy is 40 percent, timing precision is 40 percent, and style flair is 20 percent.
  • Perfect scores require 99+ total score plus all timed, held, and vibrato inputs; the subsystem returns the per-song cosmetic unlock id.

Rhythm Combat#

  • FV2RhythmCombatRuleSpec binds stage music BPM to a beat grid.
  • Combo inputs inside the authored timing window receive the on-time multiplier.
  • Combo inputs outside the window receive the off-beat penalty scalar.
  • HUD beat indicator support is part of the runtime contract so stage UI can render the beat lane without guessing.

DJ Booth Mode#

  • FV2DJBoothModeSpec covers the Def Jam DJ Booth ruleset, Battle Hub arcade cabinet, and online DJ tournament.
  • Launch record count is 52, meeting the 50+ requirement with 52 authored FV2DJRecordSpec entries.
  • Each record includes record id, title, BPM, genre tag, crossfade metadata, and a /Audio/Music/DJBooth/ asset path.
  • Turntable input affects crowd reaction, meter regeneration, and combo timing bonus.
  • FV2JukeboxPlaylistSpec supports per-account unlocked playlists in Battle Hub, Garage, and Apartment hub surfaces.
  • Playlist sharing uses the ShareCode.KaraokePlaylist namespace.
  • FV2SoundtrackVisualizerSpec drives music-only listening mode with audio FFT analysis and reactive Niagara VFX.

Broadcast And Crossplay#

  • FV2KaraokeBroadcastSpec streams karaoke matches to BattleHub.Stage.Karaoke with audience emote reactions.
  • FV2CrossplayKaraokeRankedSpec defines the cross-platform ranked queue, per-song leaderboards, and per-fighter karaoke rank tiers.

Verification#

  • Contract: V2/ue/Content/V2/Audio/KaraokeRhythmMode_V2_Contract.json
  • Balance data: V2/balance/audio/karaoke-rhythm-mode.json
  • Checker: V2/ue/Tools/check-v2-karaoke-rhythm-mode.py
  • Automation: V2.Audio.KaraokeRhythmMode.AssetContract, V2.Audio.Module