This is an amazing game concept, I'd love to see you expand it. An option to invert the control scheme would be nice, or options to invert the horizontal and vertical separately.
@Apple- Even if you don't grab the people, they're still counted as saved. But I still agree that the timer needs to be longer, because if you need to get stars after you kill all the Baddies, you're SOL.
Level nine was quite easy. Place reactors EVERYWHERE. See an exposed surface? Put a reactor there. Build a few blasters and some Phantom coils early on, and then just expand slowly. The creeper doesn't expand, so, as long as you're holding off the drones and Phantoms, you should be good. I find that 2-3 Blasters can cover a drone lane indefinitely, and there only seem to be two (down the middle and down the right flank).