I think you've got a great little POC here!
Nit Picks:
- I wasn't sure what the middle top number meant
- More juice from hits (both on enemy ships and your own) I think would make things a bit more immersive and clear what's happening
- The default music volume is much less relative to ths FX volume than I would expect
I think the visuals are gorgeous and really work in a cohesive style. Did you do them yourself?
I think the controls feel very nice and tight. It feels like there takes some skill to both navigate and aim.
I like the little touch of having the ship shoot your selected option from the main menu.
Any plans to expand on this and introduce new enemies/upgrades/gameplay etc?