Abyss School Guide | Swimming Pool Mini-Game Puzzle

A guide on how to solve the swimming pool mini-game in Abyss School.

Game Guide by Sabi on Mar 17, 2025

After you finish all 10 floors of Abyss School, there will be a mini-game in a swimming pool area. Here's how you can solve it.

Swimsuit Organization and Shower Room Unlock

Abyss School Guide, Swimsuit Organization and Shower Room Unlock

Go to the locker room and put the swimsuits in their colored lockers:

Red swimsuit—Move from pink to red locker.
Move the purple swimsuit from the yellow locker to the purple locker.
Blue bikini on left-hand seats.
A green swimsuit is in the right cabinet.
Pink swimsuit—In a pink locker.
Yellow swimsuit on the right counter.

Break boxes with Seyoung in the locker room to find the bottle and bag under the crates. Shower doors open when all swimsuits are placed correctly.

Inside showers:

Place the four colored tiles in the correct pattern on the floor. Pick up the valve and install it on the left pipe after opening the glass door. Turn on a showerhead to see floor code 1505.

Unlock the shower with 1505. Yoohee should grab the pink swimsuit to close the door. Then, put the pink bikini on the tray in the top right room where you found the bag. Get Seyoung to take the swimsuit upstairs.

How to unlock the Donut Room and Solve the Upstairs Cube puzzle

Gather cubicle puzzle pieces upstairs:

Inside the yellow locker: goggles.
Orange inflatable donut on balcony counter.
Rubber duck on balcony box.
Near the lounge chairs: sledgehammer.
Another whale puzzle: Under boxes (break with Seyoung).

After placing everything correctly, the glass door opens to reveal the L-shaped pipe. To unlock the locker room, take the pipe and remove the pink swimsuit from the cubicle.

Look for the locked "OPEN" door:

Let Yoohee crawl in through the sledgehammer-broken left wall. See the colored inflatable donuts: To open the door, enter 2491 on the lock.

Now Seyoung can enter.

Hitting colored bells breaks padlocked doors inside:

Red padlocks > 6
Blue padlocks > 2
Green padlock > 6
Yellow padlock > 9

Break the padlocks and open the door by hitting the colored bells. Should Seyoung:

Break the boxes and crank the lever to open another door. Make Yoohee crawl. A filthy battery and color-coded numerals are inside: 3 Red, 7 Blue, 7 Green, and 6 Yellow.

Clean the shower batteries. Install the donut room battery to activate a closet. Hit the bells again with the new numbers:

Red (3), Blue (7), Green (7), Yellow (6) Raising the glass door lets Yoohee grab the straight pipe.

Abyss School Guide, Unlocking the Final Pipe and Finishing the Mini-game

Unlocking the Final Pipe and Finishing the Mini-game

Dispense balls for the last puzzle with Seyoung and the number ball machine:

For the upstairs puzzle handle, two balls sum up to 5. Install the main room handle on the upper right.

The first aid equipment should be in the upper left cubicle of the main area. Two balls that subtract 4 for flippers. Get the whistle near the locker room:

In the donut room, count the labels. Order balls 9, 7, 3.

A whistle casing will have color-coded numerals. Put the case on the donut room pillar. Press the bells in order: Red (3), Green (7), Blue (2), and Yellow (9) to break the casing and reveal the whistle.

For kickboard:

Count the donut room's colorful chip bags. Unlock with 6, 5, 9 balls. Finally, set everything in the main room cubicles per the left drawing. This opens the + pipe. The pool mini-game requires all pipes to be placed correctly!

Also, check out our Abyss School other guides below: