Really fun and quick game.
Pros:
Shooting feels good
Unique enemies
AMAZING art style
Good sized map; though if possible it'd be cool if different parts were more distinctive instead of the same few buildings. Like a hospital in the bottom left or a public park in the middle as your spawn point :P
Cons:
The Shotgun is WEAK, like an actual pea-shooter compared to the AR. There isnt much of an incentive to use it as the AR is so good and the Shotgun is so weak. If you can, please buff its range and damage.
The last four enemies got stuck on buildings. Its not that big of a deal, just thought you should be aware.
Summary
Love the game, keep up the good work!