Qualification Assessment guide in Zenless Zone Zero (ZZZ). Includes Hollow Zero walkthrough, License Levels, Old Capital Metro, Resonia Collection, tips and more!
Table of Contents
What is Qualification Assessment?
- Hollow Zero Tutorial type Quest
- Collect Investigation Points and receive valuable Rewards
- Gather Bangboo Enhancement Materials
- Unlock high level stages with better rewards
Hollow Zero Tutorial Type Quest
Qualification Assessment is the easiest stage in the Hollow Zero. It is an area where you can learn the basics of the stages here. To unlock other stages, you must first complete the Qualification Assessment.
Collect Investigation Points and Receive Rewards
When you complete stages in the Hollow Zero, you can collect Investigation Points which will increase your License Level. When you reach certain License Levels, you will receive valuable rewards like Booressure Bangboo and Polychromes.
Booressure Skills and StatsGather Bangboo Enhancement Materials
Qualification Assessment provides the Bangboo Algorithm Module, which is a upgrade material for Bangboo. You can also obtain high-rarity upgrade materials in the later stages of Hollow Zero, so you can do runs here to enhance your Bangboo.
Unlock High Level Stages with Better Rewards
Completing the Qualification Assessment is required to unlock the next stage, Old Capital Metro. By meeting additional conditions, you will be able to challenge Old Capital Metro, which is more difficult and offers more rewards.
Hollow Zero GuideRequirements to Unlock "Old Capital Metro"
- Complete "Qualification Assessment: Frontline"
- Inter-Knot Lvl 21 and above
- Reputation “Certified Proxy”
Qualification Assessment Tips
Ice and Ether Squad is Recommended
Many of the enemies that appear are weak against Ice and Ether Attributes, so it is recommended to use an Ice Attribute or Ether Attribute team. Nicole, who has Ether Attribute, can be obtained in the early stages of the game so it is especially recommended.
| Related Articles | |
|---|---|
| Ice Characters | Ether Characters |
Collect 4 or 8 Pieces of the same Resonia Collection
When you collect 4 or 8 Resonia Collections of the same type, you can obtain an additional Advanced Resonium. Advanced Resonium provides a better buff than the Basic Resonium, so when selecting Resonia Collections, try to choose the same type until you have 4 or 8 cards.
Qualification Assessment: Edge Guide
| Recommended Lvl | 15 |
|---|---|
| Recommended Attribute | Ice / Ether |
| First Completion | Credit x600 Polychromes x80 Boopon x1 Withered Crystal: Heaven's Azure x400 |
| Base Rewards | Investigation Points x600 Bangboo Algorithm Module x6-8 Denny x150 |
First Floor is a Straight Path
The first floor is a straight path. On the way, your Pressure will reach 100 giving you Corruption, but you can't avoid it so just continue forward.
Mind the Pressure on the Second Floor
If you follow the route shown above, you will be able to get a member of your squad and Resonia Collection without increasing the Pressure too much.
Take the Red Square at the Bottom
HP decreases on red squares, and pressure increases on purple squares. Both have negative effects, but if pressure builds up and Corruption occurs, there is no way to remove it so it is recommended to go through the red squares and lose HP. Even if your HP decreases, you can recover it at the Surprise Box Area in the center of the second floor.
It is Better Not to Pass Through the Unknown Area in the Upper Left
You don't know what will happen in areas marked as Unknown Areas. It is recommended that you do not pass it, as negative effects such as increased pressure may occur.
Enemy Weakness & Resistance
| Enemy | Characteristic |
|---|---|
| Mandrake | Level 15 / Appears on the First Floor Weakness: Ice / EtherResistance: None |
| Notorious Armored Hati | Level 15 / Appears on the First Floor Weakness: FireResistance: Electric |
| Notorious Thanatos | Level 15 / Appears on the Second Floor Weakness: Ice / EtherResistance: None |
Qualification Assessment: Frontline Guide
| Recommended Lvl | 20 |
|---|---|
| Recommended Attribute | Ice / Ether |
| First Completion | Credit x600 Polychromes x80 Boopon x1 Withered Crystal: Ink-Yellow x400 |
| Basic Completion | Investigation Points x800 Bangboo Algorithm Module x13-15 Denny x450 |
Pass All Squares on the First Floor
The first floor has Resonia Collection and Call For Support at the bottom right. Pressure will accumulate and you will receive Corruption, but collect everything here to enhance your team for the second floor.
Reduce Pressure at the Bottom Right
At the bottom right, after acquiring the first Resonia Collection, you can reduce Pressure by 10 by going around from above instead of going straight through the right.
Save Pressure Recovery for Later on the Second Floor
On the second floor, you can Reduce Pressure at the two squares in the top-left corner. Proceed down towards the goal first while building up Pressure, and then go up to recover after it reaches around 60. This will make it easier to avoid Corruption.
Reduce Pressure before Reaching 90
If you get to a square that reduces Pressure when it's already at 90, it will increase to 100 and you will receive Corruption. Make sure to use the Pressure recovery effect before your Pressure reaches 90.
Enemy Weakness & Resistance
| Enemy | Characteristic |
|---|---|
| Ruthless Fiend | Level 20 / Appears on the First Floor Weakness: FireResistance: Electric |
| Arlaune | Level 20 / Appears on the First Floor Weakness: Ice / EtherResistance: None |
| Notorious Dullahan | Level 20 / Appears on the Second Floor Weakness: Ice / EtherResistance: None |
Zenless Zone Zero Related Articles
Collectibles
| Collectibles | ||
|---|---|---|
| Mewmew | HIA Coins | Cargo Trucks |
Training and Challenges
| Training | ||
|---|---|---|
| Combat Simulation | Routine Cleanup | Expert Challenge |
| Challenges | ||
| Notorious Hunt | Hollow Zero | Shiyu Defense |
| Weekly Bosses Guide | ||
|---|---|---|
 Dead End Butcher |  Unknown Corruption Complex |  Twin Marionettes |
