The That’s Not My Neighbor 2.1.0 update adds new questions to Chester’s quiz in Nightmare Mode and changes some questions in the main campaign. If you’re looking for the new Chester quiz answers, this guide lists all seven Nightmare Mode answers, the available answers for Days 1–6 in the main campaign, and the achievements and badges you can unlock.
All Chester Nightmare Mode Quiz Answers in the 2.1.0 update
Use the following answers when Chester asks his seven questions in Nightmare Mode.
| Question | Correct Answer |
|---|---|
| 1. What is the scientific name of the Australian animal that looks very different outside its natural habitat? | Psychrolutes Marcidus |
| 2. Which sport lets you punch your opponent for capturing your knight? | Chess Boxing |
| 3. According to F.M.S., global warming results from a decrease in what? | Pirates |
| 4. What is the last name of the person behind the real face of the famous internet mask? | Fawkes |
| 5. Who was the hairiest lieutenant of World War II? | Wojtek |
| 6. Which temple is connected to a god who caused a massive pandemic in the afterlife? | Zul’Gurub |
| 7. What is the codename of the organism that can clone anything touching its rhytidome? | SCP-038 |
Nightmare Mode Rewards
Once you answer all the Chester’s questions correctly, you’ll get the following rewards:
- The Nightmare Quiz achievement.
- A pink badge displayed in the Nightmare window.
All Chester Main Campaign Quiz Answers
Chester also asks a new set of questions during the main campaign. The following answers are available for the first six days.
| Day | Question | Correct Answer |
|---|---|---|
| Day 1 | The updated Day 1 question is not fully recorded in the source. | 42 |
| Day 2 | What is the number of different permutations of the most relevant Mersenne prime in computing? | 302400 |
| Day 3 | How many elements are in the power set of the set of happy palindromic numbers less than 10,000? | 536870912 |
| Day 4 | How many times must you fold a 0.01 mm thick sheet of paper to cover the distance between the Shire and Mordor? | 38 |
| Day 5 | How many unique permutations does the cardinality of the power set with a number of elements equal to the first happy perfect number have? | 45360 |
| Day 6 | How many numbers smaller than the sum of Chester’s ASCII codes are coprime to that sum? | 358 |
Main Campaign Rewards
Answering Chester’s six questions correctly in the main campaign gives you the golden badge and an achievement.
After you answer the sixth question, Chester will ask if you want to go with him. Choose YES to unlock the Cosmos achievement.
How to Unlock the Nightmare Achievement
You must enter Nightmare Mode and die there to unlock the additional achievement.
Follow these steps:
- Play the main campaign until around Day 3.
- Look for the character wearing a clown mask who gives you a flyer about the clown.
- Find the phone number 6666 printed on the flyer.
- Call the number and select YES when the voice asks if you want to enter Nightmare Mode.
- Once inside Nightmare Mode, let yourself die.
Any type of death in Nightmare Mode will count. When you return to your office, the clown will eat you, unlocking the achievement.
Important: Dying in Nightmare Mode causes you to fail the day and restart it.
Nightmare Mode Phone Number Bug
Do not call 6666 before the clown-masked character gives you the flyer. Doing so can freeze the screen when the YES and NO options appear, forcing you to exit the menu and restart the day.
Wait until you receive the flyer before calling the number.
