Man this is one of those jam games that feels really fleshed out, pun intended, I really had a great time playing it and exploring the mechanics! You did an amazing job designing and implementing these levels and not only did the abilities feel good, they also looked amazing with a lot of juiciness to them, like the flesh wrapping around the harpoon when you spear into it.
I'd love to see this built out into a full game! I'd give suggestions, but I think you know exactly what you are doing :)
Fantastic job!