This game is super addicting! My favorite part is the overall aesthetic. Its all very polished and well put together. My only criticism is related to some bugs I found, but it seems you’ve already listed them in the known bugs section.
An idea for this I was imagining was that after a while, an enemy pirate ship appears in the background. It shoots cannon balls at you. This is an additional obstacle, but maybe as a reward for dodging them, the break some blocks for you as well. So it adds another layer of chaos but also a way for the player to use environment hazards to their advantage.
Good work!