I really wish I had a gameboy that could play this game - it has such a nostalgic, chill and engaging vibe. Nice touches like the weather and the depth affecting sight underwater. I really like the contrast between the land vs underwater atmosphere (the music is great at emphasising this).
In an age where games tend to give you a map and instruct you where to go, I love the sense of discovery here - buying better equipment and exploring the world myself means I get greater joy when I come across a pocket of yummy fish :)
I hope you finish this game one day, I'd love to play it with the fish:money ratio balanced out.