Thank you very much for playing, and for sharing your feedback!
I will release a post-jam update with some minor bug fixes including a larger fish collision box. The concept is that you can't control the jump at all. You can only trigger it, and expect to land at the right place or moment to enforce puzzles. That was the original idea, but yeah some levels were tries and I just hope I got the right level of difficulties. Not very easy to set in such a short time tbh haha ^^'