Undercover Rat in Zenless Zone Zero: How to Start and Complete

Author Frank Gammer Reading 6 min Views 18 Published by August 14, 2024 Modified by August 14, 2024

In Zenless Zone Zero (ZZZ), Undercover Rat is a special edition of the main storyline, in which you have to destroy the Mountain Lions gang. To do this, you will need to get a universal keycard by entering the correct code from the locker, and defeat Razor (a rabid strongman). In this guide, we will tell you how to start and complete this mission.

Contents

Walkthrough of the special edition “Undercover Rat” in ZZZ

How to start the task

Before you can take on the passage of this quest, you will have to meet a couple of conditions, namely:

Reach at least the 34th level of the Internet.
Complete the third chapter of the storyline called “Midnight Search”.

If you completed the episode before patch 1.1, you will most likely have the “Echoes of the Interlude” quest active, during which you will first need to talk to your sister/brother. During this conversation, you will learn about the need to visit the Security Service to renew your entrepreneurial certificate.

After that, the task you need will immediately begin. Plus, a new location will be unlocked – the New Eridu Public Security Service. Move to the specified area and go to the reception desk. Talk to Amy – you can choose any answers, since they will not affect the ending and rewards. Then say “Let's go” to start a new cutscene and comic.

Defeat the Mountain Lions

Immediately after completing all the videos, a combat test will begin, in which you will be given control of Zhu Yuan, Qingyi, and Seth. Study the instructions for controlling these characters. In short, the first one plays the role of a main DD (deals the main damage to enemies), the second one is a sub-DD (allows you to accumulate stun, stun enemies, and group them in one point), and the third one is a support (helps reduce the damage received by the team and accelerates the accumulation of anomaly).

Deal with all the regular enemies on the first floor (they are unlikely to cause you any problems) and get on the elevator. After going up to the second floor, deal with another group of enemies. Then go to the new area and defeat the Wanted Brute. Try to stun him with Qingyi as soon as possible, and then finish him off with chain attacks.

Go further and destroy the Fierce Cleaner. He is weak to Electro attacks, so use Qingyi and Seth against him often to stun him quickly. Beware of the enemy's spin attacks, as they are quite difficult to parry. After destroying him, return to the elevator and go up to the 3rd floor.

How to defeat Jane Doe

Once up, defeat another group of enemies here. Then watch the video with the appearance of Jane Doe. Next you have to defeat her and two ordinary bandits. We advise you to first deal with ordinary enemies so that they do not get in the way under your feet.

As for the mini-boss, it can be stunned – to do this, try to attack her with Qingyi and Seth more often. When she is stunned, switch to Zhu Yuan to deal maximum damage. We recommend using her ult if she is ready.

The main danger is Jane's dashes, which are colored red. You can try to parry them with a perfect assist, but we advise you to simply use dodges. Remember that the enemy usually performs 3-4 dashes, so you should not relax after you dodge the attack for the first time.

Let's add that Qingyi's quick strikes are also capable of attracting Jane Doe and incapacitating her, but only for a while, that is, even if you continue to attack, the boss will still jump away from you on his own after a few seconds and immediately perform a counterattack.

Talk to Seth and gather information

Watch the lengthy cutscene, listen to the conversation between Zhu Yuan and Qingyi where you learn that Jane is actually an undercover agent, and then read the comic. You'll then learn that you can pause the special at any time to return to the main world.

Now go to Seth and chat with him. Next, you will need to talk to three bandits: the Overseer, the Common Bandit, and the Smart Bandit, in order to find out the information you need from them. It is impossible to make a mistake here, so ask about everything.

Explore the area around the transit point

Approach the Bandit Sentry near the entrance and go “patrol” the area by selecting the “Right Now” option. Read the instructions on Jane's abilities. In short, you need to attack enemies or perform a perfect dodge to build up “Excitement Rush” (the blue bar under your health), and then enter the “Excitement Frenzy” state.

In this mode, her attack power increases, her dodges are amplified, and her physical attribute anomaly accumulation becomes more effective. Dealing damage will reduce the duration of the “Madness of Excitement”, while defensive assistance and perfect dodges, on the contrary, will increase its duration. Don't forget to also hold down the basic attack button (LMB) for a long time to perform a spinning kick “Salchow” (can be used once per Madness of Excitement).

Run to the control panel, and then deal with the group of Ahrimans. Go through the opened passage and get close to the lasers to start the cutscene. Then examine the highlighted boxes with junk and pick up the access card from the floor. With it, you can remove the lasers on the right.

Go to the new location, climb the stairs up, avoiding the lasers, and deal with a new group of etherials. Interact with the next console to open the passage. Then overcome a small labyrinth and remove the lasers. Continue moving forward following the marker and deal with the ghosts and khati.

We will add that sometimes along the way you will come across green and blue canisters (see the screenshot below) – be sure to break them to restore health and energy. Remove the next barrier and go down to the lower floor along the ruins. Activate the console and return to the main room, where you will need to deal with new enemies.

After removing another barrier, move on. Start going down, avoiding lasers, and approach the console. Get to a new large location. After dealing with ordinary opponents, you will encounter the Crazy Psycho. Fortunately, Jane Doe is an extremely maneuverable character, so you can easily dodge almost all of his attacks, especially in enhanced mode. After killing him, go to the last console, which you cannot disable.

Get supplies, a master keycard, and the Port Summit cassette

Back at the base, talk to the big guy to avoid a fight. Then chat with the Private and Angry Bandits. You can choose any dialogue options. Having obtained the necessary information, you will need to find a way out of the transit point – to do this, talk to the bandit sentry.

He will agree to let you out, but will ask for a video tape in exchange. You will find yourself in the Ballet Twins area. Go upstairs and chat with the girl with pink hair. She will take you to Lumina Square. Exit the alley and walk along the overhead pedestrian crossing to get to the other side and enter the police station area.

The Correct Locker Code

Of course, you can't just enter the building, so distract attention from yourself by dealing with the drunks on the street. Once inside the police station, go to the right through the glass partitions and approach the locker. You will need the code to use it.

The hint says that this is the most common number here. Enter the office on the left, turn around and on the right you will see a report hanging on the wall – interact with it. You will learn that the most common number is 101225. Interact with the cabinet again. First, select the number “101”, and then “225”.

Now go to the control room, but before that you can go to the room on the right and inspect the workplaces of Zhu Yuan and Qingyi. Interact with the door and leave the area. Go to the cinema on the other side of the street and talk to the moviegoers to find out where you can find the desired film. Next, go to the alley to the right of the cinema and ask the contact to take you to Sixth Street.

Go to the door of the video store and listen to the conversation between Jane and the proxy. You will get the movie you need. Then you will take control of the main character again. Chat with your sister/brother.

Catch the Fugitives

Back at the bandit staging area, talk to the Smart Guy. Then check out the comic. You'll learn that the prisoners have escaped with the Overseer. The combat trial will begin. Run upstairs, avoiding the lasers, and then fight the Ethereals. Once you've dealt with them, continue forward following the marker.

Deal with another group of enemies. Then climb a little higher, passing by lasers and avoiding the explosion of mines. Approach the boxes on the left to start a new cutscene. Two prisoners will manage to escape, but Seth and the Overseer will be captured. Watch the new video.

How to Defeat Razor

After watching the cutscene, interact with the boxes and select the option “I'm already mentally prepared…” to proceed to the denouement. You will find yourself in the zero cavern, where the Mountain Lions base is located. First, you will need to climb up, going through crowds of bandits and collecting keycards.

You will mostly have to fight with ordinary bandits and wanted thugs. Access cards will be highlighted with markers. Don't forget to smash green and purple canisters to restore health and energy. After dealing with all the enemies, pick up the buffs on the left, and then climb up the ladder.

Watch the new cutscene. Next, you will have to fight Razor, who is an elite enemy – a Frantic Strongman, vulnerable to fire and physical attacks. You will control Seth and Jane Doe. Use the first one to get a shield (use an enhanced special attack) and reduce the boss's resistance to anomaly accumulation. The Tyren Rat will deal the main damage as soon as it stuns the enemy.

Razor is quite slow, so Jane Doe can easily dodge his attacks. Don't forget to use Perfect Assist as well. We advise you to save your ult for when the enemy is stunned to deal more damage. Also try to stay behind the enemy.

Then control will pass to the main character. Go upstairs and sleep on the bed. This will complete the task. As a reward, you will receive 600 Internot points, 50 polychromes, 4 expert journals, 2 amplifier energy modules, 1 etheric coating and 25 thousand denni.