This was strangely compelling, and I did manage to find the object in the end. Towards the middle of play I got a bit frustrated because I felt like I was running around in circles and the bell sound always seemed the same. More variance in the sound could help. I also needed to lower the mouse sensitivity a lot.
(Note to creator: I think you need to change the resolution on itch's end, if you click edit game you can input the desired size.)