The game does kinda fit with the theme. The game is also pretty easy to understand. The graphics are okay enough, however the Music sounds nice.
In my opinion, i don't really see the game being that fun. You should make more enemy types than just 2, and make it so you would need to kill the enemies in order to pass to the next part. I wish that the gun had a shorter reload time.
Overall, alright game, but could use some improvements.