That’s Not My Neighboris a fun little indie game that was uploaded to mobile app stores anditch.io. While the core gameplay loop of comparing documents to a person in front of you is rewarding and reminiscent ofPaper’s Please, it also has a variety of Easter Eggs to keep players engaged.

While some of the Easter Eggs, such as the NPC Dr. W. Afton, are simply rewards for encountering them, others award medals when the player does very specific actions. One such Easter Egg is Chester’s Quiz, in which players have to answer six questions posed by a time-traveling hippie.

A close up of Chester from That’s Not My Neighbor

Updated on June 06, 2025, by Abigail Angell:The new update for That’s Not My Neighbor includes Nightmare Mode, where Chester shows up and offers players a range of new questions. To keep this guide as complete as possible, it has been updated with all the answers players will need to pass the Nightmare Mode Quiz. This guide will also explain the reasoning behind why each answer is correct.

Where To Find Chester In That’s Not My Neighbor

Chester spawns randomly in the Arcade Mode ofThat’s Not My Neighbor. He appears as an older man with a peace sign shirt, plaid button-up, and groovy headband. This led to speculation by fans that he is a time traveler, as the game takes place in the fifties, well before the peace sign and hippie movement took off. This theory was later confirmed by the developer.

Once Chester appears, he doesn’t have much to say in the way of small talk. Right away, he asks if you know the meaning of life. If you answer this (or any later question) wrong, Chester will leave. To correctly answer all of the questions in Chester’s quiz, you’ll need very specific, obscure pop culture knowledge. Alternatively, you can follow a guide like this one.

A screenshot of Chester declaring you’ve given the right answer in That’s Not My Neighbor

Question

Answer

What is the meaning of life, the universe, and everything else?

42

A screenshot of Chester in Nightmare Mode asking his first question in That’s Not My Neighbor

What is the scientific name of the Australian animal that drastically changes its appearance when removed from its natural habitat?

Psychrolutes Marcidus

What is the name of the only sport that allows you to punch your opponent in the face because they capture a piece?

Chess Boxing

At least how many times do you have to fold a 0.01mm thick sheet of paper to cover the distance between the Shire and Mordor?

38

An image of Chester’s badge and the commented achievement in That’s Not My Neighbor

The key is hide EQEY QBXM MBIA MWXM XUES MCMS BQIX WUEW AHWY MV?

Uranus

According to F.S.M., global warming is a consequence of the fact that since the 19th century, the number of ______ decreased.

Pirates

There are a total of six questions in Chester’s Quiz. Each must be answered correctly, or Chester will leave. Once Chester leaves, there is no chance for him to come back until you start a new run, so players should check their answers carefully before submitting them.

Question One

The first question is a reference to the bookThe Hitchhiker’s Guide to the Galaxyby Douglas Adams. The answer is42.

Question Two

The second question is areference to the Blobfish, and the answer isPsychrolutes Marcidus.

Question 3

You might think that this description sounds like a cross between chess and boxing. If that was your guess, you were correct. The answer,Chess Boxing, is a real sport in which opponents alternate between playing chess and boxing until the chess game is won or someone is knocked out.

Question 4

This question is a reference to the book seriesThe Lord of the Ringsby J.R.R. Tolkien. In it, the narrator states you would have to fold a .01 mm thick sheet of paper38times to reach Mordor from the Shire.

Question 5

This question has two steps. The first is solving the cipher, which is a vigenere cipher (we won’t go into how todecode a vigenere cipher yourselfhere). The solved cipher reads “What is the seventh planet in the solar system?” The answer to this isUranus.

Question 6

According to F.S.M., global warming is a consequence of the fact that, since the 19th century, the number of ______ decreased.

In this question, F.S.M. refers to theFlying Spaghetti Monster, a spoof of organized religion. In the post history of this blog is an article on global warming, where F.S.M. claims that the decrease inPiratesis the cause of the phenomenon.

That’s Not My Neighbor Tag Page Cover Art

Lastname of the man behind the true face of the mask most known to internet users.

Fawkes

Which number would give you the victory in a contest of writing the largest number with the conventional rules of the Roman Numeral System?

mmmdccclxxxviii

That’s Not My Neighbor

Name the hairiest Lieutenant of World War II.

Wojtek

Temple where once a god caused the largest pandemic ever seen in all the great darkn beyond.

Zul’gurub

Clave name of the multicellular organism with the ability to clone anything it touches its rhizome.

SCP-038

How many numbers are formed with the digits of the cardinality of the parts of a set with the first perfect and happy number of elements?

45360

That’s Not My Neighbor

Question 1

This question’s wording is confusing, but that is because it refers to a convoluted piece of internet culture. Many people who read this question probably think of the correct mask it relates to - often used to depict the hacking group Anonymous. This mask, white with a goatee and red cheeks, was made famous by the movieV for Vendetta. However, this isn’t the name of the man on whom the mask is based - which is what the question asks for. Themask depicts GuyFawkes, a member of the Gunpowder Plot of 1605 in England.

Question 2

The answer to this question is much less convoluted than the last but still requires the player to know thenumbering conventions of Roman Numerals, a seldom used system. Roman Numerals only go up to the letter m, which depicts 1000. Repetition indicates that a number should be added to the previous number, and you cannot repeat it more than three times. This, along with other rules we won’t cover in detail here, makes the answermmmdccclxxxviii.

Name the hairiest lieutenant of World War II.

This question might seem like a strange thing to find in a history book, but the answer is unusual enough to warrant recording. During World War II, captured Polish soldiers were offered the chance to fight for the Soviet Union and made their own battle unit (the Polish II Corps). During their time on active duty, the group gained custody ofa Bear Cub whom they namedWojtek. This bear became a valuable member of the group as he grew and eventually received the rank of Lieutenant.

This refers to an event in the MMOWorld of Warcraft.The Corrupted Blood Eventtook place in September of 2005 and essentially stalled the game entirely. The cause was a debuff inflicted by Raid Boss Hakkar the Soulflayer at theZul’gurub Temple, which, through a bug, could escape the raid area into the main server.

That’s Not My Neighbor

The key to answering this question is the word “Clave.” Clave names are a feature of the SCP Containment Breach universe, which is assigned to things with unusual powers. One such organism,SCP-038, has the powers described in the prompt.

While the first challenge of this question is undoubtedly parsing the convoluted wording, the answer is nothing most laypeople know of.The Cardinality of Numbersis a mathematical principle used to compare finite sets of numbers, and the question asks the player to devise one such set that is perfectly aligned. The answer to this question is45360.

Rewards For Completing Chester’s Quiz In That’s Not My Neighbor

Passing Chester’s quiz results in him presenting the player witha badge of Chester’s face. This badge then sits in the player’s booth on the wall. In addition, players receive an achievement calledThe Best In The Class. Once you have passed Chester’s quiz, he will no longer appear.