Hey my friend great game!
It takes me a while to learn how to pull the rocks, then I realise that I had to hook on the rocks and move away to pull them and reveal the treasures.
Good mechanics and simple controls, the aesthethics were nice and the sound is somehow relaxing. Not sure about the theme but you got a perfectly enjoyable little game over here :)
If you plan on taking it forward I would polish the hook-and-pull mechanic so you can click a button to try to pull the objects away, some of the treasure can be bullets to recharge your main weapon so you can fight back sea monsters, and I would allow the player to go deeper getting darker the deeper you go and having to use some in-built lights to see your surroundings.
Monsters and bosses can get harder and bigger the deeper you go but they will give you bigger rewards :D
Sorry for the long post, but it has a lot of potential from what I can see! Keep the good work! ;)
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Hey, thank you so much for such elaborate feedback.
Thanks for the compliments. Indeed, the theme is a bit stretched with the fish charging towards you (I guess).
Your ideas for pushing the game forward are all very good; thanks for the input. I had this initial idea of going deeper into the ocean as you progress in the game, but I decided not to push it too much in the game jam and get some rest.