I actually played this yesterday
But didnt feel like writing a review, but meh, here it goes:
The Graphics: All building, units and enemies looked allright, specially the last level, the bullets(when they hit walls) are a nice touch, I loved seeing the things you had to destroy, well, getting destroyed:). I think that the backgrounds are to monotone, perhaps you could add an ice level or sumthing.
The sounds: Wow, the voice actress did some awesome work there, I love her voice :D. Everything sounded like it should, the sounds were specially astounding on the last level, WOOT!.
The gameplay: You said on the comments(didnt check if you modified it) that you could skip levels if you felt they were too long or stuff, however I actually felt, specially the 3 strategy ones, really short, I mean, just when I wanted to try building or upgrading something else, BOOM, mission ended. Scratch that, the duration of the missions is just fine, even though I said that before, there was one time(I think the first mission) that just at the moment I got tired of it, it ended, so I think the duration is not too short, yet not too long. Now let´s get to the cherry, the PAD level, it´s sad it´s only one level, however even sadder is that it´s not hard nor too long. The only grip I had with the Pad level, as stated before, was it´s duration, everything else was really, really good, I bet that both styles could be stand alone games by themselves, since both of them are bugless(As far as I remember) and pretty polished. Something that...got to my attention, was that I could get accostumed to the Pad right away, perhaps, before the mission starts, you could let as try controlling it, but then again, you choose when to enter enemy territory.
One last thing, if I remember correctly, at the Pad level, it said "There is 3 XXX left", where it should say "There are 3 XX left".
Overall: One of the most polished flash games I have played, not to mention that one can tell that actuall effort was put onto it.