Skip to content
Puzzle Solutions
Harold Halibut

Puzzle Solutions

Navigate the puzzles in Harold Halibut with our comprehensive guide. Learn how to clean the filter station, feed the fish, and more in Chapters 1.1 and 1.2.

By ···10 min read·Multi-source verified
1 reading this guide  
Puzzle Solutions

Navigate the puzzles in Harold Halibut with our comprehensive guide. Learn how to clean the filter station, feed the fish, and more in Chapters 1.1 and 1.2.

This guide covers the puzzle solutions and main tasks for Chapters 1.1 and 1.2 of Harold Halibut.

Walkthrough
  1. 1
    Chapter 1.1 - An Ordinary Day
    • After a cutscene, you gain control of Harold in the All Water District Station.
  2. 2
    To get out, interact with the little boy near reception.
  3. 3
    Follow Professor Mareaux through the All Water Tube System and select Central Station. This unlocks the 'Tubular!' trophy.
  4. 4
    Exit Central Station and head left to ride another tube system, selecting the Lab District.
  5. 5
    Chapter 1.2 - The Hang of It
    • After a cutscene with Professor Mareaux, follow her to the laboratory and receive tasks and the PDA.
  6. 6
    Use the PDA to access the To-Do list for Main and Optional Tasks.
  7. 7
    Main Tasks
    1. Clean the Filter Station
      • Go to the lowest section of the Lab District.
  8. 8
    From the lab, walk left to a T-section (Lounge/LVL 1 signs).
  9. 9
    Go down the stairs to the Filtration Pump014F sign.
  10. 10
    Enter the room and interact with the lever on the upper right.
  11. 11
    Highlight the symbol with the orange glow.
  12. 12
    Select the '∝🗌' symbol, then the '🌀?' symbol to flush the filter.
  13. 13
    Feed the Fish
    • Approach the machine next to the countertop table in the lab; it's out of fish food.
  14. 14
    Head out of the lab to the T-section (Lounge/LVL 1 signs).
  15. 15
    Take the stairs to LVL 1 and go right to the Botanical Concepts 022F and Observatory room.
  16. 16
    Interact with Cyrus in the Botanical Concepts room to get fish food.
  17. 17
    Return to the lab and interact with the fish feeder machine.
  18. 18
    Go to the Agora Arcades
    • After completing the previous two tasks, head straight to the Tube System from the lab.
  19. 19
    A cutscene will play, and you will exit the Tube System with a new task.
  20. 20
    Watch the Announcement
    • Exit the Tube System and go left to the T-section.
  21. 21
    Go right through the Lounge room.
  22. 22
    Enter the room to trigger a cutscene where you meet Chris and watch the announcement.
  23. 23
    Time to Sleep
    • Exit the lounge. Tube Systems are now closed due to curfew.
  24. 24
    Head back into the lab, go left from the fish feeder, and down the stairs to find your room.
  25. 25
    Interact with the bed to proceed to the next day.
Tips
  • To obtain the 'Rebel Achievement' or Trophy, walk to the door in the All Water District Station three times, and Secretary 24 will scold you each time.
  • The 'All Water Intro' note is achieved automatically after getting the PDA.
  • The 'The Lightkeepers' note is achieved automatically after getting the fish food from Cyrus.
  • The 'Fish Dinner' note is achieved automatically after feeding the fishes.
  • Author's Suggestion: Tackle the 'Clean the Filter Station' and 'Feed the Fish' tasks consecutively by visiting Cyrus and the filtration pump before returning to the lab.
  • 'Chris in the Lounge' note is achieved by asking every available question while talking to Chris.
  • 'Buoy Announcement' note is achieved after watching the announcement with Chris.

100% Human-Written. AI Fact-Checked. Community Verified. Learn how AntMag verifies content