i really enjoyed this game. Here are the things i like:
- the art is very pretty, the use of a limited colour pallet is allways a good idea
- the gameplay is very enjoyable
- the guns feel ballenced and fun to use
- enemy AI actually sort of knows what she is doing
here are things i think you could improve
- more sfx, maybe a hurt sound or just make the existing ones a bit louder
- more maps, maybe just randomly select one at the start of a new wave
- more forgiving difficulty curve, the game gets really hard really fast
Keep up the good work man, you really have potential!