Wow, this game is awesome! I loved the art and the idea of the fish getting annoyed with the trash in the ocean and picking a gun to fight with the boats is super creative and funny!
The only complaint I have is that there's sometimes a bit too much down-time swiming to the shops and back, which is a bit boring, but I also think it would be very easily solved if you make the fish move a bit faster or shrink the map a little bit. (Also, the web build didn't load for me, so I had to download the win version to play it)
The game is also super polished for a jam game, really great work!
It's also really cool that you ported the game to mobile as well