I think this concept could be improved by massively reducing the volley timer. I think the intention here was for the game to be more strategic, but since the cannons are difficult to aim and the ships are incredibly nimble, I found it frustrating to get any damage onto other ships.
I think if you make the cannonballs bigger, massively reduce the volley timer, and add a good bit of bullet spread you'd have yourself a really fun party game with some bullet hell elements.
