I added a tag called "playtesting" so that people that are interested in playtesting games will find the right topics to do so :)
I tried the game and it's pretty smooth! It starts a bit too fast to my liking and my shots didn't seem to do much, but I really like the control scheme, quite responsive.
The look is still a bit rough, it lacks some cohesion. I really like the look and the light effects of the asteroids for instance, but some other effects and models feel a bit out of place or dated. Maybe adding some post-processing or visual effects to the whole screen could be a quick improvement, or maybe it's just my taste :)
I think that there is no pause menu and that I can't go back with the back button. Also you could also add some instructions somewhere.
Congrats! It's already a pretty nice endless game! keep at it :) Hope my feedback can help you ;)