i loved the aesthetic. the music and art style were really impressive!
there were quite a lot of bugs. some examples include the enemies regularly failing to kill the player and the 'quit' button crashing the game.
(going further, i'd recommend just scrapping the quit button all together, since the game is played in-browser)
not too sure how the game was related to the theme.
some variety with the enemies/tiling would have been nice, but overall this was a fairly enjoyable shooter game. well done!