Nice Game
Hey.
Consider adding more effects to make the game more engaging. For example, when you hit enemy ships, add a flash effect, similar to when the player is hit. Also, add explosions when destroying enemies.
Graphics look alright. However, the backgrounds is a higher resolution than the sprites, so there's a mismatch there. I do like how the colors of the lasers match the main color of the ships that fired them.
When the game is over, don't just suddenly put up the "Game Over" text. Add a short delay, and change up the music. Also, you should change up the music when you fight the bosses. There is also some white space along the right and bottom edges of the Flash window. On the title screen, the "e" at the end of "Space" is cut off a bit.
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- Ziro out.