Cool little game. Made it to level 11.
Feedback:
- Difficulty was really low and didn't change much from level to level.
- Would be nice to see more dynamic behavior from both the enemy ships and asteroids (several asteroids were overlapping when split).
- Holding fire instead of spamming it would help for ergonomics.
- Add selection of single vs. multiplayer mode.
- Allow player to still move around during level switches.
- Fix issues with full screen (game doesn't seem to work well unless in full screen and then can't get out of full screen any other way than pressing Esc)