Zenless Zone Zero Billy Build
Attack
Cunning Hares
HP
DEF
ATK
Impact
Attribute Mastery
Billy Upgrade Materials
Billy Best Disk Drives
Billy Best Main Stats
IV: Crit DMG / Crit Rate
V: Physical DMG
VI: ATK%
Billy Best Sub Stats
Crit DMG
ATK%
Crit Rate
Billy Best Skill Priority
Basic Attack
Dodge
Special ATK
Ultimate ATK
Billy Overview
Billy Kid is an 
A-rank character with Physical attributes. He specializes in Attack and is a 
Pierce-type character who belongs to the Cunning Hares. faction. This post covers Billy’s build, W-Engine, Bangboo, Disk Drives, stats, and more information. You can scroll through this post to read the complete build guide.
Billy F2P Team
Billy Starter Team
Billy Basic Skills
Basic Attack
Full Firepower
Press 
to activate.
Unleashes a penetrating attack, dealing with Physical DMG. Continually tap or hold to enter the Crouching Shot to extend the attack duration. Drag the Joystick during the Crouching Shot to launch a Rolling Shot and adjust the character position, dealing with Physical DMG.
Stop tapping or holding during the Crouching Shot to launch the Finishing shot at enemies in front, dealing with Physical DMG.
| Standing Fire DMG Multiplier | 68% |
| Standing Bullet DMG Multiplier | 7.6% |
| Crouching Fire DMG Multiplier | 66% |
| Crouching Bullet DMG Multiplier | 8.9% |
| Rolling Shot DMG Multiplier | 66% |
| Finishing Shot DMG Multiplier | 83.4% |
| Standing Fire Daze Multiplier | 68% |
| Standing Bullet Daze Multiplier | 7.6% |
| Crouching Fire Daze Multiplier | 57.4% |
| Crouching Bullet Daze Multiplier | 7.7% |
| Rolling Shot Daze Multiplier | 57.4% |
| Finishing Shot Daze Multiplier | 64.2% |
Billy Special Skills
Special Attack
Stand Still
Press 
to activate.
Performs up to 3 piercing attacks in a line, dealing physical damge. Anti-interupt level is increased while using this skill.
| 1st-Hit DMG Multiplier | 23% |
| 2nd-Hit DMG Multiplier | 49.2% |
| 3rd-Hit DMG Multiplier | 47.5% |
| 1st-Hit Daze Multiplier | 23% |
| 2nd-Hit Daze Multiplier | 49.2% |
| 3rd-Hit Daze Multiplier | 47.5% |
EX Special Attack
Clearance Time
When Billy has enough Energy, Press to activate.
Powerful piercing attack in a straight line, dealing massive Physical DMG. Character is invulnerable while using this skill.
| DMG Multiplier | 749.6% |
| Daze Multiplier | 437.2% |
| Energy Cost | 60 |
Billy Dodge Skills
Dodge Attack
Risky Business
Press to dodge.
Character is invulnerable while using this skill.
Dash Attack
Starlight Sanction
When moving 
during a dodge press : Launches a piercing attack at nearby enemies within a large area, dealing with Physical DMG.
When moving during a dodge press : Launches a piercing attack at enemies in a line, dealing with Physical DMG.
| 360-degree Shot DMG Multiplier | 62.3% |
| Straight Shot DMG Multiplier | 38.1% |
| 360-degree Shot Daze Multiplier | 220.3% |
| Straight Shot Daze Multiplier | 192.5% |
Dodge Counter
Fair Fight
Press during a perfect dodge to activate.
Pierces enemies in front, dealing with Physical DMG. Character is invulnerable while using this skill.
| DMG Multiplier | 220.3% |
| Daze Multiplier | 192.5% |
Billy Chain Skills
Chain Attack
Starlight Mirage
When a Chain Attack is triggered, select the Agent to activate. Unleashes a powerful piercing attack at enemies in a large area, dealing massive Physical DMG. Character is invulnerable while using this skill.
| DMG Multiplier | 733% |
| Daze Multiplier | 194.4% |
Ultimate
Starlight Sparkle
When Decibel Rating is at Maximum, press 
to activate.
Unleashes a powerful piercing attack at enemies in a large area, dealing massive Physical daamge. The Anomaly Buildup dealt to the struck target is increased by 10%. Character is invulnerable while using this skill.
| DMG Multiplier | 1316.3% |
| Daze Multiplier | 333% |
Billy Core Skills
Core Passive
Steady Shot
Billy’s DMG increases by 25% when he enters Crouching Shot during his Basic Attack. The effect ends if he moves, returns to standby, or is knocked back or launched by an attack.
Additional Ability
Team Starlight
When another character in your squad shares the same Attribute or Faction: After Billy uses a Chain Attack, the DMG of his next Ultimate is increased by 50%, stacking up to 2 times. This effect resets whenever an Ultimate is activated.
Billy Assists Skills
Quick Assist
Power of Teamwork
When the on-field character is launched, press 
to activate.
Launches a piercing attack at enemies in front, dealing Physical DMG. Character is invulnerable during the attack.
Evasive Assist
Flash Spin
When the character in combat is about to be attacked, press to activate.
Dodge the enemy’s attack and trigger Vital View. Character is invulnerable while using this skill.
Assist Follow-Up
Fatal Shot
Press after a Evasive Assist to activate.
Pierce enemies in a wide range in front, dealing Physical DMG, The Character is invulnerable while using this skill.
| DMG Multiplier | 412.6% |
| Daze Multiplier | 341.2% |
Billy Mindscape Cinema
MC 1
Dazzling Entrance
When Billy hits an enemy with a Dash Attack or Dodge Counter, he gains an additional 2.7 Energy. Can trigger once every 5s.
MC 2
Roaming Gunslinger
Billy’s Dodge Counter DMG increases by 25%.
Rolling Shots during his Basic Attacks are treated as dodges, making Billy Invulnerable during the skill and able to trigger Perfect Dodges.
When a Rolling Shot triggers a Perfect Dodge, it will automatically become a Dodge Counter.
MC 3
Teachings of the Starlight Knights
All skill levels +2
MC 4
Starlight Ballistics
When Billy hits an enemy with his EX Special Attack, the skill’s CRIT Rate is increased based on the distance from the enemy. The closer he is to the target, the greater the effect, up to a maximum increase of 32%.
MC 5
Lost Technological Construct
All skill levels +2
MC 6
Starlight Hero
When Billy accumulates 10 hits on enemies or triggers a Perfect Dodge, his DMG increases by 6%, stacking up to 5 times and lasting until he’s knocked back or launched by an attack.
Billy Ascension Materials
Billy Total Materials
Ascension Materials
Basic Offense Certification Seal
Advanced Offense Certification Seal
Pioneer’s Certification Seal
Dennies
Skill Upgrade Materials
Basic Physical Chip
Advanced Physical Chip
Specialized Physical Chip
Hamster Cage Pass
Dennies
Core Skill Materials
Ferocious Grip
Higher Dimensional Data – Ethereal Pursuit
Dennies
Skill Upgrade Materials Per Level
Core Skill Materials Per Level