Nice game.
The hook mechanic is really hard to master due to imprecise controls. Sometimes the player accelerate (I do not know if it's due to the flow).
Apart from the movements, the rest is ok. I love all the details you put inside the stage like the light that increases the closer you get to the surface, the flow that move your character and the harpoons, all the enemies (maybe too many) especially the one that traps you (he reminded me zelda games).
Good job :)
When you want, come rate our game : ) https://itch.io/jam/heartjam/rate/238669