Cute!! 💚 The art and designs are clean and charming, and the mechanics are competent and cozy. It's a pleasant late-spring / early-summer day condensed into to a few minutes. Love the gator / croc!
In the future, specifically for resolution-restricted jams like GBJAM or low res jam, be mindful that the game resolution isn't higher than the art resolution. The movement of fish and the bob isn't restricted to the grid, and some of the text is misaligned or mis-sized.
The page says this is made in Godot. Assuming you and I are using relatively similar versions of Godot 4: while there is a lot of nuance and a lot of edge cases, the simplest "starting point" to having the correct design resolution is going to Project Settings under [Display > Window] and setting the viewport width / height to 160 x 144 (or desired resolution) and setting the Stretch > Mode to "viewport" instead of "canvas_items" (so the entire view is stretched as-is from the desired resolution, instead of being "enhanced" to a higher one).
All-in-all, great work!