Needs Some Adjustments
Hey.
The height of you game play area is too large, considering the fact that you can't move up and down. Player's ship should be placed closed to the bottom of the game play area; there's so much unused space. Sound effects should be more engaging, as should explosions. Enemies could be better, too. Consider adding more enemy types.
When I die, there is a glitch in your game ending transition. The game play area appears to reset, but then fades and presents the to the high score UI.
Consider taking a look at Lost Garden's free art for better graphics, lots of different projectile sprites, and various enemy ships. Those should fit your game nicely for what you are doing.
Good skill.
_________________________
- Ziro out.