Fun little game! I had a little trouble seeing the asteroids on the space background - it may be worth adding an outline shader to highlight them so that the low contrast doesn't take away from the game play. Overall it was a unique idea (in my realm) executed pretty well! Good work. And bonus points for Godot!
Viewing post in Carrotshot jam comments
https://github.com/GDQuest/godot-shaders/blob/master/godot/Shaders/outline2D_out...
Note the license on this and include it in your game if you implement it. You should pretty much just be able to copy it into your project and start using it - I've had good experience with this shader, and GDQuest's shader repo generally.