Proper fun idea! The art style is also really cute, and the music really fits the atmosphere you created. Took me a little while to figure out what I had to do, but that's because I didn't read the description ha.
Small problem with the bubbles, where they'll move if the player moves up / down. Making the process of catching fish a little awkward. But otherwise, a really solid game, especially for your first game jam.
Thanks! The bubble glitch is something that we'll be working on fixing. I really appreciate your comment about the music! I had never made music before, and made it last minute. Since it's a repeating loop that only lasts like 10 seconds, I was worried it would get repetitive.
Edit: Bubble moving with player bug is mostly fixed when the player moves down, when the player moves up, the bubble accelerates a bit. I also improved the bubble's collisions
Edit 2: Bubble glitch is fully fixed
