Add a mute button, the music is a bit over the top, seems to be a combination of sound effects and bgm happening at the same time, always. You need to work on the controls, allow the player to shoot with spacebar and move with wasd as well as the arrow keys. Alternatively have movement done via mouse drag and then keep shooting to just mouse click.
The art style is great and the music goes well with it to make playing a relaxing experience. One thing I can't help but dislike is how you can't explore the areas fully, like going in all the buildings. A nice addition to Kongregate though!
Hey thanks for playing my game, did you not use Stencyl for yours? If not, impressive :) I agree the game plays pretty nicely but some music wouldn't go amiss. I know it's difficult to find any which fits with the theme though.