I had a pretty fun time with the game, one of my biggest complaints was that it was difficut to judge how far my cannon balls were going.
I think I encountered a bug early on where pressing spacebar would bring up the help menu .
it was pretty tough at first I had a hard time gauging whether my shots connected or not but after I learned the strat of essentially just ramming the enemy things got easy.
I got fucking one shot by the big ship.