I played the game through to the end text (forgot what the secret # was); it is definitely very ambitious, but unfortunately turned out a bit rough around the edges. Despite the jank though I can imagine what the idea was, and I can easily envision a more complete game with more unique islands, polished mechanics and whatnot.
Besides the obvious bugs, I think the ship model could be altered because currently it’s really hard to jump out and get back in; also I’d add some sort of distance fade so that the islands and rocks wouldn’t just pop into existence when spawned. That’s more of a style thing though and I guess it’s unfair to ask of a jam game.