Zenless Zone Zero Billy Build Guide: Unleash the Ultimate Robot Warrior

In the neon-drenched streets of New Eridu, one name echoes with the relentless rhythm of gunfire and the gleeful laughter of a child chasing a dream: Billy. This pint-sized powerhouse from the Cunning Hares isn't just another Attack Agent; he's a freakin' tornado of lead and joy, a Starlight Knight in the making who turns every combat zone into his personal playground. Forget everything you thought you knew about beginner-friendly characters—Billy redefines the term with a style that's pure, unadulterated chaos. His philosophy is simple: get close, stay close, and let 'er rip. Talk about living life on the edge, or should we say, in the 'Crouching Shot' state? Oh yeah, he's that kind of Agent.

Billy 101: The Kid's Got Moves

Billy's kit is so intuitive, it's almost criminal. He's the epitome of 'easy to learn, impossible to master'—or at least, impossible for your enemies to survive. His main gig? Holding down the Basic Attack button transforms him into a mobile turret, entering the Crouching Shot state. This ain't your grandma's sniping posture. The closer Billy gets to his target, the HARDER he hits. It's a high-risk, high-reward playstyle that demands guts. But fear not! While in this state, he can scoot around like a greased-up hamster, firing Rolling Shots. He's basically attacking while breakdancing. How cool is that?

But wait, there's more! Billy's secret sauce, his Core Skill, is where things get absolutely bonkers. Pair him up with fellow Cunning Hares or other Physical Agents, and after he jumps into a Chain Attack, his next Ultimate gets a MASSIVE damage boost. This effect can stack twice. Let that sink in. A potential DOUBLE-DAMAGE ULTIMATE. It's like giving a candy-fueled kid a bazooka.

Unlocking His True Potential: The Mindscape Cinema

To make Billy truly goated, you gotta dive into his Mindscape Cinema. Getting duplicates of this A-Rank legend is the key. Here's the breakdown of what makes him an unstoppable force:

• Level 1: Using a Dash Attack or Dodge Counter gives him Energy back. More energy = more ultimates. It's a no-brainer.

• Level 2: This is the game-changer. It boosts Dodge Counter damage and, get this, counts his Rolling Shot as a Dodge move. Triggering Perfect Dodges and Counters becomes a walk in the park. It's like having a permanent 'get-out-of-jail-free' card.

• Level 4: The closer he is, the higher his EX Special Attack's CRIT Rate gets. It rewards aggressive, in-your-face gameplay. High risk, high reward, baby!

• Level 6: Hitting the same enemy or landing a Perfect Dodge grants him a stacking DMG bonus. This turns Billy from a menace into an apocalypse.

Gear Up! W-Engines That Go BRRRR

Billy's insane attack speed means he can proc effects faster than you can say "Starlight Knight." Choosing the right W-Engine is crucial to amplify his DPS madness. Here are the top contenders:

Drive Discs: Stat Stacking for the Win

Billy is a stat-hungry monster. He wants CRIT, CRIT DMG, ATK, and PEN (to ignore enemy defense). It's all about BIG, FAT NUMBERS. Here are the best Drive Disc set combinations to make him shine:

🔥 The Meta King:

• Fanged Metal (4) + Woodpecker Electro (2)

• +10% Physical DMG

• +35% DMG vs. target for 12s after triggering Assault (hello, Piper synergy!)

• +8% CRIT Rate

💥 The Balanced Beast:

• Fanged Metal (2) + Woodpecker Electro (2) + Hormone Punk (2)

• +10% Physical DMG, +8% CRIT Rate, +10% ATK. A straightforward, powerful combo.

⚡ The Crit Machine:

• Woodpecker Electro (4) + Fanged Metal (2)

• +8% CRIT Rate

• After a crit with Basic, Dodge Counter, or EX Special, gain +9% ATK for 8s.

• +10% Physical DMG

When farming for individual Disc stats, aim for these god rolls:

• Partition 1, 2, 3: Primary stat is HP/ATK/DEF respectively, but chase CRIT Rate %, CRIT DMG %, ATK %, PEN in the sub-stats.

• Partition 4: Primary should be CRIT Rate % or CRIT DMG %. Stack the other crit stat and ATK.

• Partition 5: Primary Physical DMG % is non-negotiable. Then more CRIT and ATK.

• Partition 6: Primary ATK %, followed by CRIT and PEN.

Squad Goals: Building Billy's Dream Team

Billy needs friends who can stun enemies and set up his damage-dealing extravaganza. He's the star, but even stars need a good supporting cast.

🎯 Team 1: The OG Cunning Hares (The Beginner's Best Friend)

• Billy (Main DPS): The lead singer, shredding through enemy HP.

• Anby (Sub DPS): The ultimate wingman. She inflicts massive Daze, setting up stuns and Chain Attacks for Billy to exploit.

• Nicole (Support): The mastermind. She reduces enemy DEF, making Billy's shots hit like freight trains.

• Bangboo: Booressure. Because why not add more chaotic energy?

💀 Team 2: The Physical Powerhouse (Advanced Synergy)

• Billy (Main DPS): Still the main event.

• Piper (Sub DPS - Sons of Calydon): This is where magic happens. As a Physical Anomaly Agent, she activates Billy's full Core Skill. She builds Anomaly to trigger Assault, which synergizes beautifully with the 4-piece Fanged Metal set on Billy. She also buffs team DMG. This duo is insane, but requires careful field time management.

• Lucy (Support - Sons of Calydon): The perfect cheerleader. Her EX Special Attack buffs the whole team's ATK (and CRIT DMG at higher levels).

• Bangboo: Bangvolver. For that extra bit of firepower.

The Grind: Leveling Up Your Legend

Ready to invest in the future of chaos? Here's what you need to max out Billy by 2025:

To Level 60:

• Basic Offense Certification Seal x4

• Advanced Offense Certification Seal x32

• Pioneer Certification Seal x30

• Dennies x800,000

Farm Seals and Dennies in the VR Combat Simulation and run your video store!

To Max All Skills (Basic, Dodge, Assist, Special, Chain):

(Divide totals by 5 for a single skill)

• Basic Physical Chip x25

• Advanced Physical Chip x75

• Specialized Physical Chip x250

• Hamster Cage Pass x5 (Get these from events and the New Eridu City Fund!)

• Dennies x2,500,000

To Max Core Skill (Level 6):

• Higher Dimensional Data: Ethereal Pursuit x60 (Farm: Expert Challenge: Notorious Armored Hati)

• Ferocious Grip x9 (Farm: Notorious Hunt: Newborn Dead End Butcher)

• Dennies x405,000

Final Verdict: Is Billy Worth It?

In a word? ABSOLUTELY. Billy is more than just a beginner-friendly character; he's a high-skill ceiling dynamo who can carry you from the early game to the toughest endgame challenges. His playstyle is thrilling, his damage potential is through the roof, and his joyful demeanor is infectious. Building him correctly unlocks a playstyle that is aggressive, mobile, and deeply satisfying. So gear up, get close, and start blasting. The title of Starlight Knight isn't just given—it's earned, one Rolling Shot at a time. Let's gooooo! 🚀🔫