The game is simple and nice, the starting tutorial is very polished and well-done.
However, what I would change:
- Add more sound effects, c'monnnnnnnn, I expected to so much sound effects, it matches the game perfect and would add much tension.
- Ability to kill the astros, it would add to the game
The game feels a bit random, you can get smashed by an asteroid every moment and even if you're a good player, it's hard to me to see how can people get improved and be better.
Overall great job and good luck!