Very well made game! Here is my honest review:
Pros
- Fun space shooting gameplay
- Various enemies
- Good explanatory tutorial
- Cool boss with multiple phases
- Indicators of fast enemies
- Nice handmade art
Cons
- I still didn't understand how boss works exactly. Can you defend planet against him by shielding? Or you just need to kill him as fast as you can?
- I was playing on big screen, so I could see where opponents spawn. I got cheating advantage :)
- When player is playing, his eyes look more into right part of the screen. So player character would look more like blurry circle. Because character shoots a bit lower than it's center it's a bit inconvenient to shoot. It would be better if he shoot from it's center. (If you didn't understand what I said here, pls say me, I will try to explain it better)
My suggestions/improvements
- Add HP bar for boss
- In your game ammo is unlimited, so I think there is no point of pressing shooting button. You should make shooting automatic. Because, right now player just spams shooting button
- It would be cool to see more enemies and bosses in future
In overall I really liked your game. I hope you will continue to manage it further and release a full game. If you didn't understand something from what I have said, feel free to ask me.

