Good, but flawed
The pellet gun drove me right through the first seven or eight levels, but unfortunately, thats it. After the enemy got nukes and four bunkers, I couldn't do a damn thing about it. The game gets too hard too fast. Either weaken the pellet gun, or give your allied bunkers some sort of AI to fight the bad guys with. They're pointless otherwise, to the point where I didn't buy them. I was expecting help from Mr. Nuke, but before it even charged HALFWAY, the battle was over and I had lost. The end.
Good, but the difficulty needs a lot of work.