the controls are fine and smooth, but varying enemy ships, power-ups and maybe a boss would make it a more enjoyable and motivating space shooter. resubmitting it later with new features would help draw more attention to it as well.

With lot improvments this can be a good game,like :
More ships (i mean the enemy)
Highscores
Bosses
Powerups etc..

and do you gived credits to the music ? (i know its remixed but that doesnt matter)