A pirate themed bullet hell? Yes, please!
I guess I'll get the not-so-good stuff out of the way since there really isn't much in my opinion. First, it's a fairly easy game overall, but that's far from being a deal breaker in this case. For a lot of gamers that may not be hardcore bullet hell fans (or even know what that means), this game is a great way to jump into the genre without being bombarded with thousands of on-screen enemy bullets. Secondly, it feels a little short. Granted, you can play the game virtually forever, but if the game had more stages and bosses it could be even more epic. I also felt a bit slighted by the fact that you cannot - no matter how you pick and choose your upgrades - max out all stats at one time. Doing it this way does make sense, but I was kind of hoping that the ability to maximize your capabilities would become available after beating the main game.
As for the positive points, for one thing I've been massively addicted to this game since I first started playing; enough so that I earned myself all the in-game medals and increased starter cash. As with a lot of games like this, I can't help think how nice it would be to get some Newgrounds medals and points, but I understand the whole "Play this on our site!" mentality, so that's cool.
The music is rather epic, and it's fairly reminiscent of Pirates of the Caribbean much of the time, so I have nothing but good things to say there. The sound effects may not be anything to write home about, but they aren't annoyingly mute-worthy, either. The graphics and animation are quite excellent, and the game itself is just as easy to pick up and play as you suggest. I've probably played for at least three hours altogether, so I can say with some amount of certainty that it's quite bug-free.
The loot and upgrade system works pretty well, and trying different stat builds really changed my overall gaming experience. I personally prefer a fairly even build (as much as possible), but the most important single stat would have to be speed, in my opinion. Dodging enemies and their bullets becomes vital to survival by the end of the game, and it can make things a whole lot easier early on.
Thanks for making such an entertaining game! It may not be very difficult when it comes to those of us who are used to frenetic bullet hell shooters, but that makes it fun for everyone to play. I'm sorry to see low scores from users who want a truly hellish challenge, but the general consensus remains decidedly positive. 5/5, 10/10