Hi there,
This is a pretty cool little game! Art is charming, audio is good! There's still a few points I think could be better:
- The speed of the bonus (ammo, health) is a bit too high, so that it's sometimes hard to be able to get them since your plane is kinda slow to move.
- I'm not sure the ammo management is a good idea in this type of game - especially because of what I mentioned before, I would rather see some temporary bonuses or perks such as "increased rate or fire" or missiles or different pattern of shooting.
- To be fair, the "on the edge" here is only visible on your game description - in your own story telling. This is not something you can think about while playing the game if you don't read that.