Hello Mr.o139,
After reviewing your game, I came to this conclusion:
1. I love the soundtrack
2. Graphics could be better but has it's own feel which is good.
3. After jumping the fall is to fast. It feels like the gravity is too strong.
4. The map is green and the aliens are green. Bad visibilty. I would make them bigger change theire color and make them slower because they are way to fast.
5. No health bar. I would love to see how much health I have.
6. At the end on the GAME OVER screen. There is a bug. It says "You killed $aikilled$ aliens".
Overall I would say that this game is really nice and fast paced. I would love to play this game after some improvements :D.
On which engine did you make this game?
Much love, Yussuf Kobilov