Really interesting and unique take on the theme. Having your own allies attack and trying to aid them is a neat concept. I liked the sprites you made for the Allied ships that attack you.
It would be nice if there was some more feedback for when you take damage, on my first try I was so focused on colliding with the asteroids I didn't realise I was winning until the game over screen popped up.
Neat game. I managed to get a highscore of just over 300 on my second try. Well done!