Zenless Zone Zero – Billy build and promotion guide

Become a true Starlight Knight with the best Zenless Zone Zero Billy build and fulfill this robot’s childlike dream. Billy is an Attack Agent with great single target as well as area-of-effect moves, who excels at staying mobile and dodging attacks.

Billy’s key mechanics are pretty straightforward, making him an excellent beginner character. You can keep pressing his Basic Attack to enter the Crouching Shot state, which continuously deals damage to the target and applies a buff to his Basic Attack DMG. Keep in mind that the closer you are to your target, the more damage you’ll deal. To get yourself out of dangerous situations, you can move around while being in the Crouching Shot state, launching Rolling Shots — Billy is quite mobile and can attack while being on the move.

His second important mechanic comes into play when he’s paired up with fellow Cunning Hares or other Physical Agents: If that condition is satisfied, then the damage of Billy’s next Ultimate (a powerful area-of-attack move) will be substantially increased after he participates in a Chain Attack. This effect can stack up to two times, potentially doubling his Ultimate DMG.

• Full Name: Billy Kid
• Role: Attack
• Damage Type: Physical
• Faction: Gentle House aka. Cunning Hares
• Rarity: A-Rank

Billy’s capabilities can be enhanced by obtaining duplicates of him and upgrading his Mindscape Cinema. Level 1 regenerates Energy for him after using Dash Attack or Dodge Counter, Level 2 increases the Dodge Counter DMG and counts his Rolling Shot as a Dodge move — making it a lot easier to trigger Perfect Dodges and Dodge Counters. Level 4 increases his EX Special Attack’s CRIT Rate the closer he is to the target, while Level 6 allows him to stack a DMG bonus when hitting the same enemy or triggering a Perfect Dodge.

ZZZ – Billy: best W-Engines

There are a ton of strong W-Engines for Attack Agents and many of them have something to offer for Billy. Heartstring Nocturne probably offers the best package from the available S-Rank gear, providing tons of CRIT Rate and CRIT DMG to increase Billy’s damage ceiling, though he can’t make use of the gear’s full array of abilities.

Best W-Engines for Billy in ZZZ:

• Heartstring Nocturne (S-Rank)
• Steel Cushion (S-Rank)
• Starlight Engine Replica (A-Rank)
• The Brimstone (S-Rank)
• Severed Innocence (S-Rank)
• Cannon Rotor (A-Rank)
• Starlight Engine (A-Rank)
• Street Superstar (A-Rank)
• Housekeeper (A-Rank)

ZZZ – Billy: best Drive Discs

Billy’s high attack speed and aggressive orientation make him an archetypical DPS character, who wants to get as much CRIT Rate, CRIT DMG, and ATK as he can get to maximize the damage he can deal. PEN is another good pick for him, allowing your shots to bypass enemy DEF.

Best Drive Disc sets for Billy in ZZZ:

• Woodpecker Electro (4) + Puffer Electro (2): +8% CRIT Rate, +9% ATK for the wearer for 6s when landing a critical hit with a Basic Attack, Dodge Counter, or EX Special Attack (buff can be attained from all three sources simultaneously), +8% PEN Ratio.
• Fanged Metal (2) + Woodpecker Electro (2) + Puffer Electro (2): +10% Physical DMG, +8% CRIT Rate, +8% PEN Ratio.

Best Drive Disc stats for Billy:

• Partition 1 – HP (Primary), CRIT Rate, CRIT DMG, ATK %, PEN
• Partition 2 – ATK (Primary), CRIT Rate, CRIT DMG, ATK %, PEN
• Partition 3 – DEF (Primary), CRIT Rate, CRIT DMG, ATK %, PEN
• Partition 4 – CRIT Rate or CRIT DMG (Primary), CRIT DMG or CRIT Rate, ATK %, PEN, ATK
• Partition 5 – Physical DMG (Primary), CRIT Rate, CRIT DMG, ATK %, PEN
• Partition 6 – ATK % (Primary), CRIT Rate, CRIT DMG, PEN, ATK

ZZZ – Billy: best teams

Billy wants a lot of time on the field to unleash as many shots as he can. Since his Core Skill revolves around participating in Chain Attacks and using his Ultimate, having a Stun Agent at Billy’s side is a good idea.

• Billy (Main DPS), Anby (Sub DPS), Nicole (Support)
• Bangboo: Amillion

The Cunning Hares make a solid team, especially at the beginning of the game. Anby can inflict lots of Daze on the enemy, stunning them and initiating Chain Attacks to allow Billy to make use of his Core Skill. Nicole is an excellent Support who can reduce enemy DEF, enhancing Billy’s damage this way.

• Billy (Main DPS), Caesar (Support), Astra Yao (Support)
• Bangboo: Knightboo

If you want to spoil Billy with some of the best Support characters available, then this is the way to do it. Caesar debuffs enemies and creates a shield for the team, allowing Billy to survive any stray hits, while Astra Yao provides buffs and fire support from off the field, leaving Billy to run the show.

ZZZ – Billy: promotion materials

After obtaining Billy, you’ll want to level him up as quickly as possible to make use of his talents in combat. Here are the materials required to upgrade him to Level 60:

• Basic Offense Certification Seal x4
• Advanced Offense Certification Seal x32
• Pioneer Certification Seal x30
• Dennies x800,000

You can obtain Certification Seals from the VR Combat Simulation. Advanced materials may be crafted using lower-level materials as well. Dennies can be earned in the VR Combat Simulation as well as through operating the Random Play video store.

Leveling Billy up is only half the game, though — you’ll want to upgrade all of his skills as well to get the most out of his performance in battle. Here are the materials required to max out his Basic Attack, Dodge, Assist, Special Attack, and Chain Attack — we’re giving you the total you need, so just divide everything by five to get the materials needed for a single move:

• Basic Physical Chip x25
• Advanced Physical Chip x75
• Specialized Physical Chip x250
• Hamster Cage Pass x5
• Dennies x2,500,000

Chips can be farmed in the VR Combat Simulation with Advanced and Specialized Chips also being available through crafting. Hamster Cage Passes are a rare material that can be grabbed from time-limited events as well as the New Eridu City Fund.

Finally, you can level up his Core Skill six times to make Billy stronger, for which you need the following materials:

• Higher Dimensional Data: Ethereal Pursuit x60
• Ferocious Grip x9
• Dennies x405,000

Higher Dimensional Data: Ethereal Pursuit is available from the Expert Challenge: Notorious Armored Hati, while Ferocious Grip must be acquired through Notorious Hunt: Newborn Dead End Butcher.