I really enjoyed the game and the boss fight at the end. It took me a while to get the play on the theme, but once I saw the first enemy, I went 'Oh duh'. Shooting sound could have sounded a little better and I'm not sure if the bullets going through enemies was intentional or just left in, but it definitely made the game easier. A health bar for the enemies would have been nice to have because I couldn't tell if it was getting more difficult in later levels by enemies having increased health or not. Overall, fun game! Great job!