I played a couple rounds and it was pretty fun. I have a couple question/comments about the game.
1. If I fly to the top of the screen I end up back at the "universe" screen. Is that intentional? I found this out by accident while try to run away from some enemies.
2. I chose the easy setting and had trouble lasting more that 30 seconds. Maybe make easy mode a little easier.
3. This one may be a personal preference, but after letting go of the accelerate button it would be nice to have the ship gradually slow down.
Nice job!
3.