I like how you combined multiple mechanics for such a small game to effectively separate level into multiple stages. Like when you first pick up the upgrade, it feels very impactful, also, when you get out of the ship and just continue using your jetpack part was a bit unexpected but very interesting.
Also, it's amazing how music slowly ramps up to follow the gamepley.
My main issue is with the controls. Having steering on A/D and then moving forward with Shift, shooting on Enter?! :D idk it just felt very weird. I liked weird controls sometimes just for the sake of weirdness but for this game it felt out of place for me.