It's probably decent game, I can't be sure because I'm probably having a skill issue.
Everything seems alright at early until the big ships appear, the bigger one does a cannon attacks while the smaller does a charging attack, I probably have no problem if I were fighting them one on one but two at same time not to mention I have to constantly evade the random rubbish or logs that constantly appears and anticipated incoming whirlpool while at it are no joke.
My biggest problem are obviously the Aim, I know the cannon aimed at the boss automatically but for me it's always off since I was forced to constantly move to avoid the logs or I guess my aim just suck.
*Just a suggestion, if you don't want to give player a target lock then at least let them to aim manually with mouse or something as this game current aim are doable but it's feels janky, also giving player ship a boost like a dash or something if you're planning to have boss who does a ramming attack so the player has a chance to defend themselves.
That's all I guess, if I write something wrong or missed something, let me know.