the game fits the theme, and is easy to control the character, the minimap is not necessary (in my opinion of course) i would make the enemies appear on the screen instead of being the majority of the time offscreen shooting you, and will add collision to the bullets to avoid enemies shooting you from the end of the map.
The only thing that i really didn't like was the music, thanks for including a button to disable it lol , other than that, i really enjoyed the game.