Qualification Assessment is the first zone of Hollow Zero in Zenless Zone Zero (ZZZ). See the recommended level, all enemies and bosses, best characters, Resonia, and walkthrough for the Qualification Assessment here!

How to Unlock Qualification Assessment

Unlock Hollow Zero

Qualification Assessment becomes available immediately after unlocking the Hollow Zero in the game. You can unlock Hollow Zero after finishing Chapter 1 Intermission, which will come after completing the Cat's Lost and Found commission.

Hollow Zero Guide

Qualification Assessment Stage Info

Qualification Assessment Stages
Edge	Frontline

Edge Details and Walkthrough

Stage Info

Rec. Level	Level 15
Best Elements
Elements to Avoid

Best Characters

Attack	Soldier 11 Ellen Zhu Yuan
Defense	Ben
Stun	Lycaon Koleda
Support	Nicole Soukaku Lucy

Tier List and Best Characters

Enemies

Floor	Featured Enemies
#1	Mandrake Notorious - Armored Hati
#2	Notorious - Thanatos Corrupted Bandit - Frenzied Maniac

List of All Enemies

Floor 1 Walkthrough

#	Floor 1 Walkthrough
1	Move through the tiles until you get your first Resonia and the some Gear Coins. Note that the leader of the team can affect the set of Resonia given throughout the stage.
2	Continue moving and complete your first battle against Pyromaniacs and Raiders.
3	Proceed to the next area using the HDD and get a character. It will be one of the characters you selected at the start of the level.
4	Continue moving until you reach the Shop. Buy everything you need using Gear Coins or you can save and use them on the next Shop to buy Resonia or catalyze them.
5	Enter through the exit of floor 1. Follow the markers and defeat all enemies to reach the next floor.

Floor 2 Walkthrough

#	Floor 2 Walkthrough
1	At the start of floor 2, collect all the tiles such as the Gear Coins, Resonia, and the last character on your roster. Those can help you with the final fight later on.
2	Proceed to the Random Tile in the middle to proceed. It will take you to a Bonus Area where you can get additional Gear Coins, healing, reduce pressure, and Resonia.
3	Fight the enemy blocking the path to the upper part of the area. It will unlock additional rewards around the tile after beating all the enemies there.
4	Pass through alll the tiles except for the red one to get all the rewards left. Also, spend all your Gear Coins in the Shop, as you won't be able to use them anymore after this part.
5	Head to the exit and fight the last waves of enemies, including the boss, Notorious Dullahan.

Frontline Details and Walkthrough

Stage Info

Rec. Level	Level 20
Best Elements
Elements to Avoid

Best Characters

Attack	Soldier 11 Ellen Zhu Yuan
Defense	Ben
Stun	Lycaon Koleda
Support	Nicole Soukaku Lucy

Tier List and Best Characters

Frontline Enemies

Floor	Featured Enemies
#1	Arlaune Corrupted Bandit - Ruthless Fiend
#2	Notorious Dullahan

List of All Enemies

Floor 1 Walkthrough

#	Floor 1 Walkthrough
1	Collect all the rewards in the lower half of the area. Try to avoid the red tiles to prevent getting a high pressure at the start.
2	Defeat the enemy blocking the upper part of the area of the first floor. You will encounter a few thugs like a Bulky Intimidator.
3	Collect all the rewards on the upper part of the area before proceeding to the exit. They should help you with the final fight on this floor.
4	Head to the exit after getting all the rewards. You will need to defeat a Ruthless Fiend and Arlaune to proceed to the next floor.

Floor 2 Walkthrough

#	Floor 2 Walkthrough
1	There will be no enemies at the start of floor 2. Feel free to collect all the rewards before going to the next panel. You can destroy the damaged walls by repeatedly tapping on it to get more rewards.
2	On the next set of tiles, you can choose to collect all the rewards or head straight to the exit.
	If you think you have enough resources to pull through, it's best to head to the exit immediately to save time. Otherwise, collect all the rewards, but prepare to fight one battle and obtain more pressure as you move.
3	Defeat the Dullahan at the exit to complete the level.

Qualification Assessment Recommended Resonia

Use Freeze, Fire, and Ether Resonia

Freeze, Fire, and Ether Resonia are the best attribute Resonia in Qualification Assessment, as they are the weaknesses of most enemies that will appear, including the bosses. Getting the characters with the same attribute as those will boost their overall strength when getting those types of Resonia.

Resonia	Effects
Cutie Cold Pack	Agent Ice DMG increases by 15%
Freezing Gun	Upon triggering Shatter, the Agent inflicts additional Daze equal to 140% of Impact on the target if the target is not Stunned.
Ice Bag	Freezing an enemy increases the Agent's DEF by 5%, stacking up to 4 times.
Ice Bucket	Launching an EX Special Attack grants the Agent 8 stacks of Ice Mark.
Ice Cube Tray	When an Ultimate hits an enemy and deals Ice DMG, the Agent gains 36 stacks of Ice Mark.
Ice Maker	Freezing an enemy increases all squad members' CRIT DMG by 40% for 15s.
Ice Shaver	Shatter DMG increases by 50%. When Shatter is triggered, hitting enemies increases the Agent's Ice Anomaly Buildup Rate by 20% for 5s.
Icicle Shooter	Triggering Shatter leaves an icy mist that lasts 10s. This effect can trigger once every 10s. Ice DMG against enemies caught in the mist deal 80% more CRIT DMG.
Portable Cooler	Freeze lasts 2s longer.
Portable Ice Maker	Freezing an enemy grants all squad members 12 stacks of Ice Mark.
Freezing Spray	Triggering Ice Mark increases the Agent's Ice Anomaly Buildup Rate by 30%.
Blowtorch	Dealing Fire DMG grants 1 stack of Motivation to all squad members. This effect can trigger once every 10s.
Camping Stove	Inflicting Burn grants 1 stack of Motivation to all squad members.
Deluxe Lighter	Agents Fire DMG increases by 15%.
Electric Torch	Fire CRIT DMG increases by 20%.
Flamethrower	Burn DMG increases by 40%.
Kerosene Lamp	When an Agent has Motivation, their Fire DMG attacks have 15% bonus PEN Ratio.
Molotov Cocktail	Agent Fire Anomaly Buildup Rate increases by 30%.
Pulse Igniter	Burning enemies have their ATK reduced by 15%.
Solid Alcohol	Burn lasts 2s longer.
Top-Notch Charcoal	Launching an EX Special Attack grants 1 stack of Motivation to all squad members.
Vintage Matchbox	Dealing Fire DMG triggers Blaze, dealing Fire DMG equal to 1200% of ATK. This effect can trigger once every 8s.
Electric BBQ Grill	Increases the effect of Motivation to 200% of its original value.
Rocketboo	All squad members' Fire DMG increases by 15%.
Cryboo	All squad members' Fire DMG increases by 10%.
Devilboo	All squad members' Ether DMG increases by 15%.
Penguinboo	All squad members' Ice DMG increases
Resonaboo	All squad members' Ether DMG increases by 15%.
Sharkboo	All squad members' Ice DMG increases by 15%.
Molten Gloves	When an Agent with Motivation Burns an enemy, the Burn DMG interval is reduced by 30%.
Scrap Amplifier	Each point of Anomaly Proficiency increases the Agent's Ether DMG by 0.2%, up to a maximum increase of 30%.
Rusty W-Engine	Corruption DMG increases by 40%
Net Launcher	Agents deal 30% more DMG to Corrupted enemies.
Trashed Harpoon Gun	Inflicting Corruption on an enemy grants 1 stack of Activity to all squad members. Corrupted enemies have their Ether Res reduced by 20%.
Unstable Tranquilizer	Dealing Ether DMG to an enemy increases Attribute Anomaly DMG 50% against the target for 10s.
Collective Emblem	Increases the chance for [Ether] Resonia to appear.
Frozen Timer	Agent Ether DMG increases by 15%.
Depleted Battery	Agent Ether Anomaly Buildup Rate increases by 15%.
Broken Chip	Launching a Chain Attack increases all squad members' Anomaly Proficiency by 25 for 15s.
Faulty Jammer	Corrupted enemies have their ATK reduced by 15%.
Deteriorating Filter	Dealing Ether DMG grants all squad members 1 stack of Activity. This effect can trigger once every 10s.
Suppressive Bracelet	Launching an EX Special Attack grants 1 stack of Activity to all squad members.
Cracked Drive	Corruption lasts 2s longer.
Invalid Adapter	Each Standard Ether type Resonium owned increases Agent Ether Anomaly Buildup Rate by 4%, up to a maximum increase of 32%.

Most Resonia That Will Appear is Random

Most of the Resonia you will get are random unless they are indicated in the Shop or special event tiles. It means you won't have full control on which Resonia will appear, but you can always refresh it if you have unlocked Resonium Converters from the Combat Configuration!

List of All Resonia

Qualification Assessment Rewards

First Clear Rewards

Qualification Assessment: Edge

First Clear Rewards
Inter-Knot Credit x600 Polychrome x80 Boopon x1 Withered Crystal: Heaven's Azure x400 Bangboo Algorithm Module x6 Denny x588

Qualification Assessment: Frontline

First Clear Rewards
Inter-Knot Credit x600 Polychrome x80 Boopon x1 Withered Crystal: Ink-Yellow x400 Bangboo Algorithm Module x15 Denny x758

Regular Rewards

Regular Rewards
Investigation Point x600 Bangboo Algorithm Module x6 - 8 Denny x150

Qualification Assessment Recommended Level

Around Level 15 to 20

The level you should aim for when taking on the Qualification Assessment should be around 15 to 20 for both Characters and W-Engines to survive and finish all the stages.

Use the necessary level up and promotion (ascension) materials to increase their level. You can use the Combat Simulation to get those rewards if you don't have enough!

How to Level Up Characters

Zenless Zone Zero Related Guides

Hollow Zero Guide

List of Hollow Zero Zones

List of Hollow Zero Upgrades and Mechanics