Starlight Billy (also known as Starlight - Billy Kid) is an S-Rank Physical Rupture DPS Agent from the Cunning Hares faction in Zenless Zone Zero. He is an upgraded Billy variant that uses a high-energy motorcycle and arm cannon playstyle focused on Sheer Force (Rupture) damage.

His kit scales heavily with Max HP, ignores a portion of enemy DEF, and offers strong self-sustain through lifesteal and damage reduction. He excels as an aggressive on-field main DPS.

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Best W-Engines

Starlight Rider Faceplate (Signature S-Rank) – Best in Slot

This engine boosts CRIT Rate and grants stacking Physical Sheer DMG whenever he uses a Special Attack. It also provides HP% as a base stat, perfectly matching his scaling.

Radiowave Journey (A-Rank Battle Pass) – Strong Alternative

Grants stacks of Sheer Force through Chain Attacks or Ultimates. Excellent for pure Rupture output.

Cauldron of Clarity (A-Rank)

EX Special Attacks build stacks that increase overall DMG and grant CRIT Rate. Reliable and fits his playstyle well.

Puzzle Sphere (F2P-Friendly)

Provides CRIT DMG on EX Special Attacks with extra damage against low-HP enemies.

Best Drive Discs and Stats

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Recommended Set: 4-Piece Yunkui Tales + 2-Piece Woodpecker Electro (or Branch & Blade Song)

  • Yunkui Tales (4-Piece): Grants CRIT Rate and Sheer DMG stacks through EX Special, Chain Attack, or Ultimate.
  • Woodpecker Electro (2-Piece): Extra CRIT Rate.
  • Branch & Blade Song (2-Piece): More CRIT DMG when needed.

Main Stats

  • Disc 4: CRIT Rate (preferred) or CRIT DMG
  • Disc 5: Physical DMG% or HP%
  • Disc 6: HP%

Substats Priority

CRIT Rate = CRIT DMG > HP% > ATK% > HP flat

Recommended Teams

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Best Team

Starlight Billy (DPS) + Dialyn (Stun) + Lucia (Support)

Strong Alternative

Starlight Billy + Ju Fufu (Stun) + Lucia (Support)

F2P-Friendly Team

Starlight Billy + Anby (Stun) + Nicole (Support)

Bangboo Options: Bangvolver (best), Booressure, Avocaboo, or Excaliboo.

Skill Priority

  1. Core Skill (highest priority)
  2. Basic Attack / Special Attack
  3. Chain Attack / Ultimate
  4. Dodge / Assist

How to Play

Starlight Billy is an on-field DPS who stays aggressive:

  • Use Special Attack to summon the bike and gain buffs.
  • Follow with EX Special Attack for damage and healing.
  • Build Determination gauge and unleash Full-Throttle Starlight burst at 100 stacks.
  • Weave in Chain Attacks and Ultimates during stun windows.

He has excellent self-sustain and rewards constant offense.

Final Tips

  • Focus on HP in early gearing as it directly multiplies his Rupture damage.
  • M1 and M2 Mindscapes offer strong damage increases.
  • His signature W-Engine is a major upgrade.