Neat entry! The amount of fish/content in this game is amazing!
This is a very relaxing game, if this was fleshed out into a full release I (and my wife too) would have bought and played it on a Switch, even if this was the only core game loop.
Some aspects like audio and visual effects take a bit of Gameboy soul, but it balances out with the movement and the Pokemon-like graphics and gameplay.
Keep it up!