For a pet shop after dark players, this is a guide to the basement puzzle, if you stuck there, this guide will help you out.
When you enter the basement you will find a chest. Upon clicking on the chest, you get a zip file in the basement folder full of images. This is all the images put together for easy viewing.
Basically what this is showing you is that you need to have your volume set to a certain level while moving in a certain direction. Once you know this it is as simple as following the instructions it has given you.
(Make sure you’re changing the second volume bar, as it indicates by having the first volume bar being irrelevant in the image)
However, if youre frustrated, this is the pattern without you having to think about it.
1) Volume set to 7, go left.
2) Volume set to 0, go left.
3) Volume set to max, go right.
4) Volume set to 7, go right.
5) Volume set to 4, go left.
6) Volume set to max, go left.
7) Volume set to 0, go right.
8) Volume set to 4, go right.
Volume 0 being circle, volume 4 being triangle, volume 7 being diamond, and max volume being hexagon. These are the only relevant volumes.