I took the lead in the leaderboard while nobody else played ;) .
It took me some retries as I totally understimated bombs and at least once I had to choose between the two same upgrades of losing my bombs in the end, while the upgrades are actually quite balanced and give a good idea of how strong the bombs (= 2 shields) are so I should have paid more attention. Granted I died several times to the last boss phase so I was not always that far from the end either.
The game is fun, it looks and sounds good, you made a fun use of the theme, the patterns from the different phases of the boss are nice and fun to deal with and the difficulty is pretty much as I like it.
Cool game, thanks for sharing.