Looks great, love the art style, sfx and voiceover!
Nice polish with the buttons tutorial disappearing after each button is used.
At first I wasn't sure what was killing me, I lost some health and then died suddenly. Then I looked up and saw the flying enemy ships. Very cool effects on those, if a bit hard to spot at first :)
Cool cutscenes at the beginning and end. I wac curious and checked if the asteroid at the end had gravity :)
Well done!