I really like the concept of this game - very fresh and creative to me. The art, music, and SFX is top notch and fits the game really well. The intro is very well crafted, and introduces the mechanics of the game very well. Overall a very excellent submission to this jam.
However, I don't know if this is intended or not, but I think the control is a too slow. Because of this, sometimes the condition of the floor makes it more or less impossible to dodge the bombs (when the floor is already cluttered with bombs and then a pirate throws a bomb directly at you). I do realize that if the movement were too fast the game would be too easy, but imho this is way too slow.
Then while the arts are very nice, I can't help but notice that the pixel resolution of the sprites don't fit. Some of the pixel arts are more detailed and have smaller pixels than others - I think this should be avoided for your future games.
The boss is a nice addition; but I think there should be a sign as to which kind of shot the boss would shoot. Is the shot relative to the player's location or something? I only figured it out after the third play, when I finally beat him.
Nice work still. I enjoyed the game. Just wondering though... Is an ending and that would the player finally open the treasure chest after some levels? :D After a few plays I reached level 16 but the game is a little bit too hard for me to consider continuing further